I need help to modify the code in an EA to pass the validation for mql market

Existing EA for MT4 and MT5 must be modified by code so that it will pass all checks to put in mql market. Also i have another MT4 EA which you have to do the same. I have ready code you only must implement the mql checks to pass for market.

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Error messages were received during Expert Advisor testing. Please test your Expert Advisor in different modes:

1. the symbol is inappropriate for trading
2. not enough money
3. not enough history
4. 4- and 5-digit symbols
5. various tick generation modes

Also, add checks for all the trade functions parameters.

There must be no errors regardless of inputs/initial deposit or any other conditions.

These checks must be implemented.

Insufficient funds to perform trade operation

Before sending every trade order, it is necessary to check if there are enough funds on the account. Lack of funds to support the future open position or order is considered a blunder. 

Invalid volumes in trade operations