I don’t understand. It is exactly the same error message as a previously fixed problem, in which XStore used the same variable name as another plugin. At the start of this ticket, I posted the link to the problem that was fixed. Why not apply the same fix by changing the variable name. Since it wads XStore that named this variable on a recent update, conflicting with my Epic News plugin, then surely just why not change the variable name? WordPress has instructions on good practice for variable names so there are no conflicts with other plugins.
Can you tell me why there is a delay, specifically, when a solution was previously found for the same error regarding another variable?