Maybe your application/code doesn't support more than one instance per machine.IS MY TRADING STRATEGY SO HARD TO IMPLEMENT? IT'S A SIMPLE BREAKOUT STRATEGY WITH STOP AND REVERSE FUNCTIONS AND B/E FEATURE ADDED!!!
I'VE HAD MULTIPLE DEVS TRY THIS AND I STILL GET ERRORS. YOU THINK THAT THESE DEVS ARE THAT INCOMPETENT THAT THEY CAN'T BUILD THIS STRATEGY? THESE DEVS HAD OVER 100 REVIEWS WITH AVERAGE 4.5 STARS OR HIGHER
ERRORS HAPPENED ON MT5 AND QUANTOWER. SO I DON'T KNOW, MAYBE I HAVE A GOD DAMN HOLY GRAIL AND THE FREAKING MARKET CAN'T TAKE IT LOL
Was this case part of your initial requirement?
If it wasn't, then it's not the developer's fault (or maybe he should have been bright enough to think to ask you that question!).
And I'll repeat myself, no code is 100% bug free.
Shit happened and shit will happen again. You just need to have a good workaround plan when it happens.