Attempting to activate K2 to a site collection may fail with one of the following errors:
1. You are running K2 version 4.7.
2. The protocol of the URL in the error stack trace appears to be missing a second forward slash; so it is https:/ instead of https://
If you are experiencing either one of these errors, please apply at least the 4.7 March 2018 CU and the 4.7 March 2018 CU FP14 to resolve the issue.
As Fix Packs (FP) are cumulative, the latest 4.7 March 2018 Fix Pack can also be found at: