Whenever I try to add an aircraft: 
 
 
	 
 
	I had this problem before and I fixed by replacing a user file, anyone knows how to solve it?
 
	Everything else works perfectly, I tried some post from the forum but no one solved it
 
	I think the solution could be, someone with this same settings could attach 
 
/core/common/ 
	OperationsData.class.php
 
	 
 
	 
 
	php Version: 7.2
 
	sql Version: 5.7
 
	skin: StislaSkin 2020 
 
	phpVMS version:  phpVMS 5.5.2.72 (ProAvia)
 
	 
 
	Note: This is not working with default skin