What steps will reproduce the problem?
1. Load game with addons enabled.
2. KTM errors right away.
3. Log out and back in again repeats error.

What is the expected output? What do you see instead?

No error.  A KTM error window.

What version of the product are you using?

See below.

Do you have an error log of what happened?

Addon said to post the following:

Version = 22.2
Localisation = enUS
Class = warrior
Module = verinfo
Process = onupdate
ExtraData = nil
Message = ...Ons\KLHThreatMeter\Code\Services\KTM_VersionInfo.lua:54 attempt to index field 'net' (a nil value)
StackTrace = ...AddOns\KLHThreatMeter\Code\Services\KTM_ErrorLog.lua:246 in function <...AddOns\KLHThreatMeter\Code\Services\KTM_ErrorLog.lua:235
...Ons\KLHThreatMeter\Code\Services\KTM_VersionInfo.lua:54 in function <...Ons\KLHThreatMeter\Code\Services\KTM_VersionInfo.lua:51
(tail call): ?
[C]: in function `x

Please provide any additional information below.

The size of the mod seems to have doubled when set to 100%.  Have to scale it down to 50% to make it about the correct size I'm used to seeing by default.