Rectangle_label: failed to create => RectLabel object! Error code = 4200 appears in my ea, it cannot be traded but can be backtested, why? How to fix this error?

 
Rectangle_label: <Deleted> Error code = 4200, <Deleted>
 
Gouxiang Lan:

You have not provided any code and we do not understand the Chinese characters. You will also have to explain in more detail.

 
2023.01.26 22:57:20.738 <Deleted> XAUUSD,M1: Rectangle_label: failed to create => RectLabel object! Error code = 4200

 
The error code is missing in the MT5 list. Same as MT4.
Code ID Description
4200 ERR_OBJECT_ALREADY_EXISTS Object already exists
Reason: