Please follow the below template, it will help us to help you!
If you are Experiencing issues with a Pi-hole install that has non-standard elements (e.g you are using nginx instead of lighttpd, or there is some other aspect of your install that is customised) - please use the Community Help category.
Expected Behaviour:
Running Pi-Hole on Hyper-V VM image of centos. It was working fine on a different computer but I had to reinstall it and then import the VM back again. I updated the server using "pihole -up", at the end it said DNS service is not running and.
I restarted the server a few times and the services also.
Actual Behaviour:
The admin panel says "DNS service not running" and instead of numbers in the colored cards I see "Lost connection to API".
Running pihole-FTL I get an error:
pihole-FTL: /lib64/libc.so.6: version 'GLIBC_2.28' not found (required by pihole-FTL)