How To Fix the “We’re Sorry—we’ve Run into an Issue” Error in Microsoft Teams

Sometimes that pesky error in Microsoft Teams — the one that says “We’re sorry—we’ve run into an issue” — pops up out of nowhere. It’s often linked to outdated app versions, cache corruption, or network hiccups. It’s kinda annoying because you’re working fine and then suddenly, nope. Usually, it’s just some corrupted temp files or a wonky session that needs a quick refresh, but other times, it might point to deeper glitches. Luckily, there are some straightforward fixes that can get Teams back on track, and doing these steps can save a lot of headaches.

Fuzzy part: clearing out cache and restarting things often fixes the issue. Sometimes, you might need to do a full reinstall if the app files got banged up. And hey, if everything else fails, using the web version of Teams is a solid workaround — it runs in your browser, so it’s bypassing whatever’s screwing with the desktop app.

How to Fix the “We’ve run into an issue” Error in Teams

Sign Out and Sign Back In — Refresh Your Session

This one is quick but effective — especially if you’ve been logged in for ages. Sometimes, after long use, your session gets a little wonky, causing authentication or sync hiccups. Signing out and back in forces Teams to re-establish a clean connection with Microsoft’s servers, which often clears up the error.

Run Microsoft Teams.
Click on your profile picture or icon in the top-right to open the menu.
Select Sign out. On some setups, you might see this under Manage account.
Check your system tray if Teams is still running in the background. Right-click the icon and choose Quit — this helps ensure it’s fully closed.
Reopen Teams, then hit Sign in and input your email/password. Sometimes, you’ll notice the app takes a bit longer after signing out, but that’s normal.
After logging back in, see if the error persists. Usually, it’s just a session refresh thing.

Clear the Cache — Reset Temporary Files

This is a classic troubleshooting move. Teams keeps a cache of files so it can load faster, but if those files get corrupted, errors can crop up. Clearing the cache forces Teams to rebuild those temp files, which is often enough to fix the problem. On some setups, this step can be the difference between a frozen app and a smooth experience.

Make sure all Teams processes are totally closed. Open Task Manager with Ctrl + Shift + Esc. Look for all entries named Microsoft Teams. Right-click each and choose End task. This is crucial because the cache can’t be deleted if the app is still running.
Now, open the Run dialog with Windows + R.
Type %appdata%\Microsoft\Teams and hit Enter. This opens the folder where Teams stores cache data.
Select all files and folders inside, but don’t delete the main Teams folder itself. Just clear out the contents — it’s like giving Teams a fresh start.
Reboot your PC. When you log back in, Teams will automatically rebuild its cache files. Sometimes, this step can fix stubborn sync errors or login glitches.

Reinstall Microsoft Teams — Do a Full Reset

If neither signing out nor clearing cache cut it, the app files themselves might be damaged or outdated. Uninstalling and reinstalling is a pretty neat way to wipe the slate clean. It’s especially handy if you’ve upgraded your OS or installed updates that sometimes cause conflicts.

Open the Run box again with Windows + R.
Type appwiz.cpl and press Enter — this opens Programs and Features.
Find Microsoft Teams in the list. Right-click, then select Uninstall. Follow the prompts, and don’t rush this — sometimes it takes a minute to fully clean up.
Next, delete leftover files: open the Run dialog again (Windows + R) and type %localappdata%. Delete the folders Teams and SquirrelTemp. These hold cached and temporary files, so removing them helps prevent re-issues.
Restart your computer to finalize the cleanup.
Download the latest version of Teams from the official Microsoft Teams download page.
Install and see if the error is gone. Sometimes, a fresh install just makes everything click again.

Honestly, these steps cover the usual suspects — outdated cache, corrupted files, session glitches. On some setups, one round of these fixes will do the trick; on others, you might have to combine things. If all else fails, jumping onto the web version can serve as a temporary fix while troubleshooting deeper issues.

Summary

Sign out and back in to refresh the session
Clear Teams cache to fix corrupted temp files
Reinstall Teams if app files are damaged
Use the web version as a quick workaround if needed

Wrap-up

These methods have saved quite a few folks from throwing their computers out the window when Teams acts up. Usually, it’s just some cached data or a session timeout, not some mysterious computer curse. If everything else fails, sometimes waiting for a Microsoft update or checking your network settings might help, but these steps are the usual go-to’s. Fingers crossed this helps — it’s a pain when Teams crashes mid-message or meeting, so here’s to fixing it quickly!