Hotspot EU868 not mining

Hello all,
I installed a heltec miner 24 days ago and it was perfectly working until I had an outage of electricity and Internet. Starting the following day the hotspot didn’t mine anything and witnesses started decreasing until date.
I tried first to wait for 24 hrs ,then did a restart and today I turned off and back on the hotspot but still no activity.
In hitspotty it is online but block chain 0/5, any idea how I cam solve this issue noting that I am not connected on the same router since I travelled.
Thank you in advance.

Check firmware version. It could be the same as Is this normal - Hotspot info?.