settings keeps closing.

[AshleyB]

Any suggestions on what I can do to stop this error or what may be happening. 

[Vic20]

Have you tried booting into recovery and doing cache wipe? I'm assuming this happened recently after an update?

[Shaggyskunk1BLM]

You might have two Night Mode QS Tiles & One of them Crashes when you Click on it - Edit the QS Tiles Button Order & Remove the one that Crashes from the QS Tiles View (Swipe it up) - Reboot 🐧

You SHOULD also as @Vic20 said - Boot into Recovery and Wipe Cache.

To Wipe Cache - Power OFF your device:

Press & Hold Power + Bixby + Volume UP until you feel the phone vibrate - Release ALL Three buttons - Wait a few seconds until you see the Recovery Menu - Use the Volume button to Scroll down to Wipe Cache - Select with the Power button - Wait a few seconds until you see the Recovery Menu defaults back to Reboot now - Select with the Power button - Done 🕊️

FYI - This is a fairly common issue with the June Security Patch OTA for the S9 series 😇

[AshleyB]

Thank You. this fixed it

[Shaggyskunk1BLM]

No worries - Was pretty sure that it would resolve the issue for you 👍🐧