Signal Lose

 
Can someone tell me why a signal does not work overnight
This is marked "authorization failed." Please check trading account data.
Where does the problem come from because it is 5 weeks of work annihilated and this is the second time! How can we have buggies like this? Thank you
 

It is impossible to tell "why" - not enogh data (it may be for many reasons).

 
How to report about possible bug/issue in Signal service (for subscribers): #9
Reason: