Why do I keep getting this error when trying to upload to 4chan from Android? Have tried Chrome and Brave browsers and cleared caches, but problem still persists.

What's causing this? Any fixes?

Any way to contact 4chan developers/technical team?

Experts, what is this 'connection error' I get everytime I try to upload to 4chan from my Android??
Have cleared caches and tried different IP's, neither worked.

Any fixes?
Please help.