We had similar issues, isolated to the addon on Kodi. Streaming using the android app and on chrome worked perfectly fine.
Once the match was over, everything returned to normal.
Unfortunately no luck from my end. I tried a few times with different combinations to no avail.
I'm running Kodi8.3 on Ubuntu 18.04 so not sure if it's related to *elec distro's
I certainly am seeing the same since this morning (it worked a charm last night), some logs below which seems to point to a license issue;
CCurlFile::FillBuffer - Failed: HTTP returned error 400
CCurlFile::Open failed with code 400 for http://license.dstv.com/widevine/getLicense
AddOnLog...