Any idea about this error in SuiteCommerce SuiteTax while removing items from the cart

Do you have any scriptable cart that is triggered on item removal?

Yes, there is Scritable cart but do you think it's run in SuiteTax? Because we also have Plugin implementation

I would put some logs on the scriptable cart and play around. Scriptable cart would execute on the events you have defined, for example when adding a new item, changing quantity, removing item, etc. SuiteTax Engine also run on those events to recalc taxes.