On the attempt to open
httpdocs folder in Customer Control Panel > Websites & Domains > File Manager I get "Internal Error".
/var/log/sw-cp-server/error_log shows the following error:
(mod_fastcgi.c.2746) FastCGI-stderr: PHP Warning: json_encode(): Invalid UTF-8 sequence in argument; File: /usr/local/psa/admin/plib/Service/Agent/Transport/JsonRpc.php, Line: 446
The folder you are tying to open includes files that have names with non-UTF symbols.
Login to the service node with the subscription in question.
Run the following command to find a file with non-UTF symbols:
#ls -laR /var/www/vhosts/example.com/httpdocs/ | grep --color='auto' -P -n "[\x80-\xFF]"
The output will show files with non-UTF symbols in the name, for example:
# ls -laR /var/www/vhosts/example.com/httpdocs/ | grep --color='auto' -P -n "[\x80-\xFF]" -rw-r--r-- 1 root root 0 Oct 16 22:59 ▒▒▒▒▒y▒}▒u▒▒.▒y▒}▒u▒~▒y
Rename these files:
# mv /var/www/vhosts/example.com/httpdocs/▒▒▒▒▒y▒\}▒u▒▒.▒y▒\}▒u▒~▒y <new file name>