Need help Core1: busy connection closed message everytime I try to backtest a EA

[pdusabe]

Hi, I'm new to mt5 and was wondering if you guys could help me out, I had a really good backtest result and then all of a sudden it stopped working and to add insult to injury every time it fails it makes that squeaky duck sound (I hate that sound lol).

Here's a partial log:

Passed in 0:00:00.000.

NQ 0 16:39:08.102 Core 1 [DAX30],M1: total time from login to stop testing 0:00:00.031 (including 0:00:00.031 for history data synchronization)

QK 0 16:39:08.102 Core 1 241 Mb memory used including 32 Mb of history data, 0 Mb of tick data

GN 0 16:39:08.102 Core 1 log file "C:\Users\1\AppData\Roaming\MetaQuotes\Tester\8D7B1C20FFBA0E11D351A330CB887FC1\Agent-127.0.0.1-3001\logs\20180703.log" written

DI 0 16:39:08.111 Core 1 connection closed

[pdusabe]

Here are the log files if it helps.