Hello, I'm having an error in phpmyadmin too,
here my error.log
[Thu Feb 17 19:12:45.133152 2022] [autoindex:error] [pid 1537:tid 139933381551872] [client 46.101.79.224:49228] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Thu Feb 17 23:19:56.133884 2022] [autoindex:error] [pid 3277:tid 139933876459264] [client 138.68.164.22:52916] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Thu Feb 17 23:19:57.745450 2022] [proxy_fcgi:error] [pid 1537:tid 139933356373760] [client 138.68.164.22:53962] AH01071: Got error 'Primary script unknown'
[Thu Feb 17 23:20:14.165766 2022] [autoindex:error] [pid 3277:tid 139934061033216] [client 138.68.164.22:35460] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 03:37:02.259721 2022] [autoindex:error] [pid 3277:tid 139934463686400] [client 167.94.138.119:54572] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 06:32:22.194598 2022] [core:error] [pid 1537:tid 139933247334144] [client 45.146.165.37:36326] AH00126: Invalid URI in request 'bin/sh' 'POST /cgi-bin/.%2e/.%2e/.%2e/.%2e/bin/sh HTTP/1.1'
[Fri Feb 18 06:42:10.121794 2022] [core:error] [pid 1536:tid 139934438508288] [client 45.146.165.37:37614] AH00126: Invalid URI in request 'bin/sh' 'POST /cgi-bin/.%2e/.%2e/.%2e/.%2e/bin/sh HTTP/1.1'
[Fri Feb 18 06:53:26.283758 2022] [autoindex:error] [pid 1537:tid 139934287505152] [client 23.224.186.179:54838] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 11:18:44.816851 2022] [autoindex:error] [pid 1535:tid 139934304290560] [client 167.94.145.57:46108] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 11:18:45.337235 2022] [autoindex:error] [pid 1535:tid 139932911789824] [client 167.94.145.57:58494] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 12:06:47.788575 2022] [autoindex:error] [pid 1536:tid 139934446900992] [client 167.94.138.46:58178] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
[Fri Feb 18 12:06:48.306844 2022] [autoindex:error] [pid 3277:tid 139934430115584] [client 167.94.138.46:44946] AH01276: Cannot serve directory /www/server/phpmyadmin/: No matching DirectoryIndex (index.php,index.html,index.htm,default.php,default.html,default.htm) found, and server-generated directory index forbidden by Options directive
Any clue please ...