Missing a lot of information. From what is there, I’d say something’s wrong with your internet connection.
“Getting a lot errors”: without the error or steps that lead up to them, this is a non-starter. It’s like saying “it doesn’t work”.
“Not searching”: equally meaningless. Doing what? RSS sync not pulling results? You perform a manual search and something unexpected happens?
The “all indexers unavailable” image could be anything. Either your indexer(s) are indeed all down, or they’re unreachable for your machine. Is there a proxy in between? VPN? Crappy internet connection? Sonarr will recover from unavailable indexers itself when they’re back up after a while.
“update: the operation has timed out” image: see above.
“RefreshSeries: the operation has timed out”: see above.
When opening a thread for help & support, it really asks you everything… not sure why you chose to delete it all and not fill it, but that’s how you don’t get a response 
Here it is again:
Sonarr version (exact version):
Mono version (if Sonarr is not running on Windows):
OS:
Debug logs:
Description of issue:
Additional Information:
- Information on the log files is here: https://github.com/Sonarr/Sonarr/wiki/Log-Files
- Make sure debug logging is enabled in settings
- Post the log file, not a line or two, or just the error from the Logs table
- Post the full log to hastebin/pastebin/dropbox/google drive or something similar and link it here
- Do not post them directly here. Post in .txt not .doc, .rtf or some other formatted document
