What's wrong with my Marineland Double Bright LED fixture??

[Timbits]

Hi all,

For the past few days my Marineland Double Bright LED fixture has been acting strange. It is on a timer and has been working well for the past year or so until a few days ago when it didn't turn on when it's supposed to. Played with the switches and nothing. But then it turned on later the day. and its been doing this for the past few days.

it doesn't turn on when its supposed to but will turn on sometime later during the day and will stay on until the timer goes off.

and its not the timer because i have another light on it and that one is working just fine.

Does anyone know what is wrong with my light? Please help me this is very frustrating. Thanks in advance!