I changed my instance variable, then I can't do playtest

Hi, I can't run playtest on my construct, after I changed my instance variable. The loading box can never more than 90%.

Did I do something wrong in my programming? A contradiction maybe?

Or it's because of the browser? I use chrome,,

.

btw, when I tried to change the default preview browser to firefox, the game still opened in chrome

There's not enough information to help here. Can you post your CAPX?

sims like you have introduced instance and forget to change it in your code check your code or send us ypur capx and I will help you out

my rep is under 500, any idea how to post the link?