Re-write rules not working

Hi,

I’ve picked up two errors, both are asking to ‘verify that the server configuration allows .htaccess’

Can anyone tell me if I just need to add the mod rewrite rules from the installation page?

One error is for page cache the other for minif. Actual messages are below:

W3 Total Cache error:It appears Minify URL rewriting is not working. Please verify that the server configuration allows .htaccess
Unfortunately minification will not function without custom rewrite rules. Please ask your server administrator for assistance. Also refer to the install page for the rules for your server.
Technical info
.htaccess file contains rules to rewrite url https://www.kusuyama.jp/wp-content/cache/minify/000000/w3tc_rewrite_test. If handled by plugin, it returns “OK” message.
The plugin made a request to https://www.kusuyama.jp/wp-content/cache/minify/000000/w3tc_rewrite_test but received:
500 Internal Server Error
instead of “OK” response.

W3 Total Cache error: It appears Page Cache URL rewriting is not working. Please verify that the server configuration allows .htaccess
Unfortunately disk enhanced page caching will not function without custom rewrite rules. Please ask your server administrator for assistance. Also refer to the install page for the rules for your server.
Technical info
.htaccess file contains rules to rewrite url https://www.kusuyama.jp/w3tc_rewrite_test into https://www.kusuyama.jp/?w3tc_rewrite_test which, if handled by plugin, return “OK” message.
The plugin made a request to https://www.kusuyama.jp/w3tc_rewrite_test but received:
Too many redirects.
instead of “OK” response.

https://wordpress.org/plugins/w3-total-cache/