Problems with the code integrity check

Anybody can help with fix this 3 problems ?
Thanks in aadvance!!!
1 - * Transactional file locking should be configured to use memory-based locking, not the default slow database-based locking. See the documentation :arrow_upper_right: for more information.

2 - * Some files have not passed the integrity check. Further information on how to resolve this issue can be found in our documentation. (List of invalid files… / Rescan…)

3 - * The “Strict-Transport-Security” HTTP header is not configured to at least “15552000” seconds. For enhanced security we recommend enabling HSTS as described in our security tips.


have you tried to click on the documentation links and read the suggestions provided there?