HeavyWolfPL

If it is a 500 Internal Server Error coming from your server, then it is not reaching the software. The error would be logged in your server error log unless your server configuration is not allowing it or incorrect log location.
Otherwise, if there is an error in our software but the ACP is inaccessible, it will be logged in /uploads/logs.

For the plugins, no. You’ll need the XML. Applications: download its folder via FTP.

Applications have all files inside their /application folder.
For plugins, instead, part of the data is used only when installing and is not saved anywhere. That's the problem. While it's possible to re-create the plugin from the files left on the server, it's not possible to simply re-install them. You'd need to hire someone to redo the plugin for you from the files.

This issue has been resolved in the latest 4.7.11 release. Please upgrade to resolve this, and let us know if you have any further problems.

The watermark feature in Downloads is great, but I would really like a way to set it per category. It looks kinda weird, to see my team's watermark on other users' files.
Additionally a way to disable watermarking feature for a file/category would also be nice.

Sorry, I haven't thought about giving a better example. What I mean is that some actions that you do on a user, make your IP appear in his Devices & IP Addresses tab. Here's an example, I've performed some actions on user's account, so my IP appeared as one of "his" IP addresses.


 
I have a simple app that just searches for any connections between users, including devices and IPs. Previously I was getting false positives, as some of my staff was flagged, due to their IP being connected to these users. I now have a simple whitelist for them, but still why does it happen?

Whenever you modify a user's account in ACP, it is displayed in his/her "Recent Activity" and IP activity. As I often deal with leakers / spammers / alt accounts, checking user IPs is something I do very often. It is annoying, when I see my and other staff's addresses in user activity, whenever I want to check something. What's even more annoying, these IP addresses also appear in the Ban IP Addresses section.
My suggestion is to disable staff addresses from appearing in the user's activity and Ban IP addresses section. I appreciate it shows the actions staff has done on specific user's account, but having them listed the same way as user's "real" IP addresses isn't helpful.

Whenever you modify a user's account in ACP, it is displayed in his/her "Recent Activity" and IP activity. As I often deal with leakers / spammers / alt accounts, checking user IPs is something I do very often. It is annoying, when I see my and other staff's addresses in user activity, whenever I want to check something. What's even more annoying, these IP addresses also appear in the Ban IP Addresses section.
My suggestion is to disable staff addresses from appearing in the user's activity and Ban IP addresses section. I appreciate it shows the actions staff has done on specific user's account, but having them listed the same way as user's "real" IP addresses isn't helpful.

Thank you. I have logged that one as a bug report

Whenever you modify a user's account in ACP, it is displayed in his/her "Recent Activity" and IP activity. As I often deal with leakers / spammers / alt accounts, checking user IPs is something I do very often. It is annoying, when I see my and other staff's addresses in user activity, whenever I want to check something. What's even more annoying, these IP addresses also appear in the Ban IP Addresses section.
My suggestion is to disable staff addresses from appearing in the user's activity and Ban IP addresses section. I appreciate it shows the actions staff has done on specific user's account, but having them listed the same way as user's "real" IP addresses isn't helpful.

The watermark feature in Downloads is great, but I would really like a way to set it per category. It looks kinda weird, to see my team's watermark on other users' files.
Additionally a way to disable watermarking feature for a file/category would also be nice.