In order to help you as quickly as possible, before clicking Create Topic please provide as much of the following as you can (you can cut and paste this into your topic):
Nextcloud version (eg, 10.0.2):
Operating system and version (eg, Ubuntu 16.04):
Apache or nginx version (eg, Apache 2.4.25):
PHP version (eg, 5.6):
Is this the first time you’ve seen this error?:
Can you reliably replicate it? (If so, please outline steps):
The issue you are facing:
The output of your Nextcloud log in Admin > Logging:
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
The output of your Apache/nginx/system log in /var/log/____:
Remember, this information may be requested if it isn’t supplied; for fastest response please provide as much as you can Feel free to use a pastebin service, otherwise log files can be indented with 4 spaces on each line to present them in a friendlier way on the forum.
Some services like Cloudflare can cause issues by minimizing JavaScript
and loading it only when needed. When having issues like a not working
login button or creating new users make sure to disable such services
first.
ownCloud also reports some issues with uploads. Can be different on Nextcloud but due to the large shared code basis you should prepared to see similar problems as well:
Out of curiosity, what would the point be of using cloudflare, if there are issues with the minifying? caching of other resources for a slight speed bump? the front-end https option? genuinely interested. I do run other sites behind cloudflare that take advantage of the caching/minifying to speed things up, but if NC doesn’t work so well with it, wondering why else someoen might use it.