Glad to hear that withdrawals are working for you!
The currency that pays for gas (in this case BNB), must be on the address that holds the token to be withdrawn. This is a limitation of CoinPayments. The plugin tries to move BNB around to fund addresses that hold tokens, so that these tokens are withdrawable. Of course these transfers also cost BNB. When you view in the plugin an address that holds a CP token, you can see whether there is enough gas on the address to facilitate withdrawal.
Hope this helps.
If you encounter any more problems with the plugin, please open a new topic or email me.
with regards