Ocdownloader crash nextcloud quote and logout

hello.

nextcloud : 15.0.7

with newly install setup . i have installed ocdownloader app for torrent download ,

After downloading torrent 6gb torrent . every time my quotes exceed over usage and can not delete those file. but I have setup quotes to 2tb

now I can not login getting redirect to login page every time.

[Fri Apr 12 10:08:54.525398 2019] [authz_core:error] [pid 8683] [client 112.135.40.216:7970] AH01630: client denied by server configuration: /var/www/nextcloud/data/.o$
[Fri Apr 12 10:11:17.450922 2019] [authz_core:error] [pid 8683] [client 112.135.40.216:7417] AH01630: client denied by server configuration: /var/www/nextcloud/data/.o$
[Fri Apr 12 10:17:49.239072 2019] [log_config:warn] [pid 8560] (28)No space left on device: [client 112.135.40.216:8367] AH00646: Error writing to /var/log/apache2/oth$
[Fri Apr 12 10:17:49.404090 2019] [log_config:warn] [pid 8572] (28)No space left on device: [client 112.135.40.216:9034] AH00646: Error writing to /var/log/apache2/oth$
[Fri Apr 12 10:17:52.368512 2019] [log_config:warn] [pid 8573] (28)No space left on device: [client 112.135.40.216:7529] AH00646: Error writing to /var/log/apache2/oth$
[Fri Apr 12 10:18:00.041786 2019] [log_config:warn] [pid 8559] (28)No space left on device: [client 112.135.40.216:8162] AH00646: Error writing to /var/log/apache2/oth$
[Fri Apr 12 10:18:01.143694 2019] [log_config:warn] [pid 8559] (28)No space left on device: [client 112.135.40.216:8162] AH00646: Error writing to /var/log/apache2/oth$
[Fri Apr 12 10:18:09.267018 2019] [log_config:warn] [pid 8683] (28)No space left on device: [client 112.135.40.216:7534] AH00646: Error writing to /var/log/apache2/oth$

please help

These messages seem to be from the apache web server and not from Nextcloud. Therefore you need to remove some file on the system console first. It might help to reboot the server to get temporary files cleaned-up so that you can log on the console or you boot your server in single user mode to cleanup your file system.