My Zotero is working fine otherwise but the ISBN look up is not working. When trying to look one up it just freezes and cancels the search if i click anywhere else. Report ID 616053840
Can you provide a Debug ID (different from a Report ID) for a lookup attempt that fails?
If you're trying from a university/institutional network and this is a laptop, you should also try from off the network. There've been some reports of problems accessing WorldCat for ISBN lookup when on certain university networks.
Reset your translators from the Advanced → Files and Folders pane of the Zotero preferences and try again, and provide another Debug ID if it's still not working.
Upgrade Storage
If you're trying from a university/institutional network and this is a laptop, you should also try from off the network. There've been some reports of problems accessing WorldCat for ISBN lookup when on certain university networks.