mt5 strategy tester - connection closed

Hi, today when I opened mt5 strategy tester I am getting an error, while it was working fine when I turned off my pc last night. When trying to backtest I get the message "connection closed" on core 1. I have tried to install a new mt5 terminal but I get the same error message. Does anyone know what is causing this and how to solve it?

Please provide sufficient information about your settings and the log entries...
[Deleted]

I get the same issue.


Strategy tester was working fine then stopped working.


The only complaint in the journal section is "connection closed."

I seen this issue happening sometimes when tester agents being stucks for some reasons. 

Instead of reinstalling MT5, I suggest to restart your pc.

Also, try to start visual mode or to backrest different EAs.
did you solved already this problem in the end ?