Our organization is running a Microsoft hosted SharePoint 2013 Cloud Service as our intranet. It was originally set up by a consultant, who built two "custom" web parts for the site. One is a calendar display and one is a quicklinks/search bar.
These two web parts will no longer load properly (just show a spinning wheel) on the main/home page. They do seem to work on other pages within the site.
No permission settings were changed, and these parts are embedded in the master site pages. Other browsers have been tried along with those outside of the organization (to eliminate any firewall issues).
Any suggestions for troubleshooting this issue?
*Disclaimer: I am not a SharePoint expert, please be kind