is there any other way to upload my codes here in the forum
because the codes that i want to upload is too long that it reaches that max number of letters allowed
Can't you make it shorter? Remove as much as possible that is not relevant but make sure it is still runnable and that you don't remove the problem that you want to show . While doing this there is a great chance that you find the problem yourself, otherwise you will have much shorter code that people are more likely to look through and help you with.