Switch keeps crashing unexpectedly (error report and error code screen included in zip)

[KamiSquadX]

• [ Ex: Kosmos' distribution of Atmosphère ]
  • [ Atmosphère 1.5.1 ]
• Do you have additional kips or sysmodules you're loading:
  • How do I find out if I have any loading? (I do have Smash mods. But Themes are the newest thing installed, everything else was installed before with minor to no issues
• Homebrew software installed: [ * ]
  • Don't know, how do I find out if any are installed?
• EmuMMC or SysNAND:
  • [ If using an EmuMMC, include whether it's partition-based or file-based. ]
  • EmuMMC, partition-based

Additional context?

I do have themes on, and on fw 16.0.0. During one of the crashes it gave an error:

"Panic occurred while running Atmosphere.

Title ID: 010041544D530000 Error: std: :abort (oxFFE) Report saved to /atmosphere/fatal_errors/report_89124d0a7.bin"

report_89124d0a7 + Atmosphere Error Screen.zip

Can anyone help? This latest cfw for 16.0.0 has been really buggy since installed. Can't play a game for a long time before the game freezes (I can press home and go back to home menu while it's frozen) and then the whole Switch eventually crashes, prompting me to press a VOL to reboot to a payload etc.

Edit: It seems even in sleep mode, while docked, it still eventually crashes. smh. Also btw the Title ID: 010041544D530000 doesn't exist in the atmosphere/contents folder. No idea what that error was referring to. I thought Smash Bros was playing without freezing, I turned it on the check again, after it started up left it on the menu for over 15+ mins, no freeze, proceeded to start a match, and it freezes. Smh.

Edit: Updated with the Issue Template.

[Masamune3210]

Please go back and fill out the issue template. It's there for a reason.

Check your SD card's filesystem for corruption

[KamiSquadX]

Template now filled out.

You mean put my SD card in my windows pc and let it check for errors? Windows detected errors, Scanned and Fixed. Tried to use the save data cloud, and launch Smash Ultimate, both crashed Atmosphere.

[SciresM]

Your report indicates fs::ResultPortSdCardNotActivated(). Use another SD card; if this doesn't resolve, you may have SD card connector problems.

[KamiSquadX]

What to do for SD card connector problems?

[SciresM]

Dunno, visit a repair shop, I guess. Either way, not an atmosphere issue.