[allowmethods:error] [pid 688212:tid 139871391713024] [client xx.xx.xx.xx:41682] AH01623: client method denied by server configuration: ‘PATCH’

this means server do not support PATCH, if this id directadmin server:

cd /usr/local/directadmin/custombuild
./build set http_methods GET:HEAD:POST:PUT:DELETE:PATCH
./build rewrite_confs