mt5 strategy tester - connection closed

altmql  

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?

Carl Schreiber  
Please provide sufficient information about your settings and the log entries...
Reason: