Light issues?!

[My120gmixed]

I have 2 marine land led strips. Yesterday I did a giant water change and added lots of new stuff likes rocks and fish. I later found out that my back light wasn’t really working? The lights would flicker continuously and then die out and the timer was not being displayed. Does anybody know what is going on and how to fix this?

 

[Reefing Madness]

Sounds like you may have knocked the power cord loose.