What does Socket Error mean in an addon

A socket error occurs generally when something forcibly closes the connection, it could be a firewall, bad proxies etc.

Firstly try it with and without proxies.  Addons only pull proxy data from scrapebox on startup, so if the use proxies box is checked or unchecked on startup and any proxies loaded, will only be refreshed in the addon if the addon is restarted.  So try unchecking the use proxies box and restart the addon, does it still happen?

If so then it’s probably something firewall or antivirus related.

Its basically process of elimination.  If it happens without proxies its probably local, if it happens only with proxies, then its probably a proxy issue.