I need help memcache database

I already tried and damaged my site, I did it again and now I ask you for help

The database is used for transactional file locking. To improve performance, please configure memcache, if available. See the documentation :arrow_upper_right: for more information.
Please refer back to the installation guides :arrow_upper_right:, and check for errors and warnings in the log.

Do you really need help to read the manual?


Read it!