I accinently, rested counters , i don’t know what to do now it counts from the beginning
what to do please help … thanks in advance 
Not sure if that’s reversible, did you try Undo (the button with an arrow pointing leftwards on the top left area under “Sessions”) on winbox?
You can see which action remains undoable by checking System > History.
Just tried but it looks like its not between undoable actions…
Did you use regular hotspot or are you using user-manager?