Unable to launch erpnext in browser as it throws internal server error after resuming from power shut down

Team, I was working on erpnext without any issues. suddenly power got interrupted during my work PC went off as i has no power backup. While power resumed, i was not able to launch erpnext on my browser and it throws internal server error though i restarted erpnext several times. On checking the logs, i found error as mentioned in the below screenshot.
i tried the below commands as well.

mysqld --tc-heuristic-recover=ROLLBACK
service mysql start

But it also did not help me as on executing these commands i get an error
job for mariadb.service failed because a fatal signal was delivered to the control process.

Kindly help