Problem with licence code

[78212327]

Hi, im having this problem, i developed a custom indicator and added a licence to it which includes the account number and expired date, i use to compile it and works fine, but suddenly im getting this error sayin that my account is not registered which it is cuz i have not modified anything on the licence code. i go back and check and compile again and the indicator appears on the chart and works fine, but when i close the mt4 platform and reopen it again same pop up shows up saying that my account is not registered, i go back and compile and works again. i dont know that problem is, when i compile im not getting any errors or warnings, the problem occurs just when i close and reopen the mt4 platform. i would appreciate if anyone can tell me whats going on.