[Tue Oct 08 19:16:14.390037 2019] [php7:warn] [pid 29283] [client xxx.xxx.xxx.xxx:7154] PHP Warning:  ZipArchive::close(): Failure to create temporary file: Permission denied in /var/www/html/openvpn-admin/index.php on line 57, referer: https://example/openvpn-admin/index.php
[Tue Oct 08 19:16:14.408425 2019] [php7:warn] [pid 29283] [client xxx.xxx.xxx.xxx:7154] PHP Warning:  readfile(./client-conf/openvpn-android.zip): failed to open stream: No such file or directory in /var/www/html/openvpn-admin/index.php on line 64, referer: https://example/openvpn-admin/index.php
[Tue Oct 08 19:16:31.594520 2019] [php7:warn] [pid 29283] [client xxx.xxx.xxx.xxx:7154] PHP Warning:  ZipArchive::close(): Failure to create temporary file: Permission denied in /var/www/html/openvpn-admin/index.php on line 57, referer: https://example/openvpn-admin/index.php
[Tue Oct 08 19:16:31.594652 2019] [php7:warn] [pid 29283] [client xxx.xxx.xxx.xxx:7154] PHP Warning:  readfile(./client-conf/openvpn-gnu-linux.zip): failed to open