error

Fatal error: Uncaught BadFunctionCallException: mysql_escape_string is not supported in /home/devaioteck/public_html/whmcs/includes/dbcompatfunctions.php:0 Stack trace: #0 /home/devaioteck/public_html/whmcs/modules/addons/expenses/expense_add.php(125): mysql_escape_string('') #1 /home/devaioteck/public_html/whmcs/modules/addons/expenses/expenses.php(257): unknown() #2 /home/devaioteck/public_html/whmcs/modules/addons/expenses/expenses.php(190): exp_expense_add() #3 [internal function]: expenses_output(Array) #4 /home/devaioteck/public_html/whmcs/admin/addonmodules.php(0): call_user_func('expenses_output', Array) #5 {main} Next BadFunctionCallException: mysql_escape_string is not supported in /home/devaioteck/public_html/whmcs/vendor/whmcs/whmcs-foundation/lib/Terminus.php:0 Stack trace: #0 [internal function]: WHMCS\Terminus::whmcsExceptionHandler(Object(BadFunctionCallException)) #1 {main} thrown in /home/devaioteck/public_html/whmcs/vendor/whmcs/whmcs-foundation/lib/Terminus.php on line 0