Trjtdtk

documentclass[journal]IEEEtran
hyphenationSmart Grid
usepackage[classicReIm]kpfonts
usepackagesiunitx,booktabs
usepackagesubfloat
usepackagesubcaption
usepackagegraphicx
usepackagecolor %for colors
usepackageepstopdf
usepackageurl
usepackagehhline%%%
usepackagefloat %for fix the image position
%usepackage[]algorithm2e
usepackageamsmath %% for case bracket
%usepackageurl
usepackagemultirow % for devide row
usepackagecaption
%usepackagesubcaption % forr subfigures
usepackagemulticol
%usepackagesubfig
%usepackagecite
usepackagecleveref
usepackageamsmath
pagenumberinggobble %%% for without page numbers
usepackagefloat
%usepackagealgorithm
usepackagearray
usepackagepdflscape
usepackage[classicReIm]kpfonts
begindocument
begintable[H]
centering small
tablesizefootnotesize
captionComprehension of recent and relevant work. labellitrature
begintabularC2.5cmC6cmC2.5cmC2.5cm
toprule
centeringbf Methodologies & centeringbf Features&centeringbf Targets Achieved&bfLimitations and Remarks \
 midrule
 %hline Optimal power scheduling method for DR in HEMS is presented in cite9 & GA & Cost and PAR reduction & Increased system complexity \
 MILP& Optimal domestic load scheduling cite35 & Electricity cost reduction & The cost is reduced at expense of user discomfort\
 midrule Greedy algorithm& Heuristic optimization of generic cost model cite6 & Reduced user frustration and electricity cost & The PAR is ignored and complexity of the system is increased \

 midrule GWO and ILP &GWO applied to economic load dispatch problems cite3& Load dispatching in off-peak hours & Solved economic load dispatch (ELD) problems in the current study \ bottomrule
endtabular
endtable 
enddocument 

You have a lot of issues in your shown code.

1. Do you really need all the packages you are loading?


2. You load several packages twice, do not do this!
   


3. Have a closer look at the order of calling packages. In your case package cleveref should be called last. If you want to use hyperref too load it before cleveref!


4. For the problem with your table the used font is not relevant (I commented it).


5. The definition for C you used in your table is missing. Because you load array I think newcolumntypeC[1]>centeringarraybackslashm#1 is what you are using but you had not copied into your code. If you use p#1 instead of my m#1 please check the added screenshot below for differences!


6. I did a little bit pretty printing with your table so the reader can faster locate a special cell in the table.


7. I commented all not needed packages you used in your code for the issue with the table. Please check the different order of loading packages!


8. Please see that centering is not working with your used class inside environment table. To visualize this I added package showframe. It shows typing area and margins ...


9. I commented tablesizefootnotesize because it throws the error message comand tablesize undefined.


10. Your used command bf is outdated, in your case you can use textbf... instead (as I did in the following code). An alternative would be to change bf to bfseries.

With the following code

documentclass[journal]IEEEtran

%usepackage[classicReIm]kpfonts

%usepackagesiunitx
usepackagebooktabs
usepackagefloat % for fix the image position
%usepackagesubfloat
usepackagecaption
%usepackagesubcaption % for subfigures
%usepackagegraphicx
%usepackagecolor % for colors
%usepackageepstopdf
%usepackageurl
%usepackagehhline%%%

%usepackage[]algorithm2e
%usepackageamsmath % for case bracket

%usepackagemultirow % for devide row
%usepackagemulticol
%usepackagesubfig
%usepackagecite

%usepackagealgorithm
usepackagearray
%usepackagepdflscape

usepackageshowframe
%usepackagecleveref % <===============================================

hyphenationSmart Grid
pagenumberinggobble %%% for without page numbers
newcolumntypeC[1]>centeringarraybackslashm#1


begindocument
begintable[H]
% centering 
 small
 %tablesizefootnotesize % <==========================================
 captionComprehension of recent and relevant work. 
 labellitrature
begintabularC2.5cmC6cmC2.5cmC2.5cm % C
toprule
textbfMethodologies 
 & textbfFeatures 
 & textbfTargets Achieved 
 & textbfLimitations and Remarks \
midrule
 %hline Optimal power scheduling method for DR in HEMS is presented in cite9 & GA & Cost and PAR reduction & Increased system complexity \
MILP 
 & Optimal domestic load scheduling %cite35 
 & Electricity cost reduction 
 & The cost is reduced at expense of user discomfort\
midrule 
Greedy algorithm
 & Heuristic optimization of generic cost model %cite6 
 & Reduced user frustration and electricity cost 
 & The PAR is ignored and complexity of the system is increased \
midrule 
GWO and ILP 
 & GWO applied to economic load dispatch problems %cite3
 & Load dispatching in off-peak hours 
 & Solved economic load dispatch (ELD) problems in the current study \
bottomrule
endtabular
endtable 
enddocument 

you get the result:

Your code has some serious issues. The fact that the C column type isn't defined is not even the most serious issue.

• The IEEEtran document class employs a two-column layout by default. You need to employ a table* environment instead of a table environment, so that the tabular material may safely span both columns.




• Since the table* environment spans both columns, you might as well make use of this fact and employ a tabularx environment instead of a tabular environment. I suggest you use the basic l column type for the left-hand column and the X column type for the next three columns.




• The caption and subcaption packages are known not be compatible with the IEEEtran document class. Don't load these packages. Instead, just rely on the caption formatting algorithms provided by the IEEEtran document class.




• Do give the tabular material a more open "look", mainly by using fewer horizontal rules. Also, don't over-use bold-facing. For sure, for the table at hand, using bold-facing for the header cells risks coming across as tacky, maybe even a bit vulgar.




• As @Kurt has already pointed out in his answer, don't load packages multiple times. In fact, do ask yourself if you really need all the packages you currently load. The code below loads only those packages that are required to make the table compilable.

documentclass[journal]IEEEtran
usepackage[classicReIm]kpfonts
usepackagebooktabs,tabularx,lipsum

begindocument
begintable*
captionSummary of recent and relevant work. labellitrature

begintabularxtextwidth@lXXX@
 toprule
 Methodologies & Features & Targets Achieved & Limitations and Remarks \
 midrule
 %hline Optimal power scheduling method for DR in HEMS is presented in cite9 & GA & Cost and PAR reduction & Increased system complexity \
 MILP& Optimal domestic load scheduling cite35 & Electricity cost reduction & The cost is reduced at expense of user discomfort\
 addlinespace %midrule 
 Greedy algorithm& Heuristic optimization of generic cost model cite6 & Reduced user frustration and electricity cost & The PAR is ignored and complexity of the system is increased \
 addlinespace %midrule 
 GWO and ILP &GWO applied to economic load dispatch problems cite3& Load dispatching in off-peak hours & Solved economic load dispatch (ELD) problems in the current study \
 bottomrule
endtabularx
endtable*

lipsum[1-30] % filler text

enddocument 

You need to define the C column. I took the definition from here.

documentclass[journal]IEEEtran
usepackagesiunitx,booktabs
usepackagefloat %for fix the image position
usepackageamsmath %% for case bracket
pagenumberinggobble %%% for without page numbers
usepackagefloat
usepackagearray
usepackage[classicReIm]kpfonts
% from https://tex.stackexchange.com/a/175138/121799
newcolumntypeC[1]>centeringarraybackslashm#1
begindocument
begintable[H]
centering small
captionComprehension of recent and relevant work. labellitrature
begintabularC2.5cmC6cmC2.5cmC2.5cm
toprule
textbfMethodologies & textbfFeatures&textbfTargets Achieved&bfLimitations and Remarks \
 midrule
 %hline Optimal power scheduling method for DR in HEMS is presented in cite9 & GA & Cost and PAR reduction & Increased system complexity \
 MILP& Optimal domestic load scheduling cite35 & Electricity cost reduction & The cost is reduced at expense of user discomfort\
 midrule 
 Greedy algorithm& Heuristic optimization of generic cost model cite6 & Reduced user frustration and electricity cost & The PAR is ignored and complexity of the system is increased \
 midrule 
 GWO and ILP &GWO applied to economic load dispatch problems cite3& Load dispatching in off-peak hours & Solved economic load dispatch (ELD) problems in the current study \ bottomrule
endtabular
endtable 
enddocument