I'm not much help here. I'm not familiar enough with all the ins and outs of LE's. I'm sure someone with much more experience will give it a good look.
Best bet would be to take that to Deaderpool’s discord. The mods there know more about reading that stuff and they get back to you pretty quickly unless you’re sending it in the dead of night lol.
Are you able to provide screenshots of your Mod folder so we can see what you have? Or send it in a PM to me and I can see if I can help you troubleshoot it.
So, I've found the culprit. And it's quite funny yet annoying and stressful to be honest. So while this problem occurs, I only play with 1 particular household at that time. And also I just added Nisa's WP 2.1.4 first time to my game and then updating the new MC Command Center to 6.0.6.6. I thought the problem was coming from both mods, because everytime I load the save file and play that household, there's a new LE note appears.
The particular household I played also only have 1 desk for computer and 1 computer itself in their house, so every time I tried all the possibilities what was wrong that make my sims can't do computer activities, I tried it on that particular computer desk. I tried changing the computer to a new one and the problem still there. I tried a different version combination of Nisa's WP and MCCC, and the problem still there too. And I even tried different save files (that still play the same household).
So, the real culprit is a fucking lamp object called "Personal Spotlight Desk Lamp" that placed beside the computer. I play with bb.moveobjects on mods. And this lamp doesn't even placed freely on that desk. I just placed it in the normal placement spot on that computer desk, right side beside the computer, but rotate it a bit facing the bottom left direction. And that makes the object placement area of that lamp overlap a bit of the object placement area of any computer on that desk. And it's the one that canceled any active interaction my sims do with the computer.
And that's it, a tiny little problem so annoying that we barely notice can cause some havoc and stressful moments in TS4.
![Face palm :FacePalm: :FacePalm:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)