Behringer fcb1010 led lights blink by startup

Contributor - Level 1
Hi, I bought a behringer fcb 1010 and used it twice. I just tried to program the expression pedals but that's it. Today I switched the unit on but the numbers of the bank (the led lights) start blinking and I can't select any banks of my guitar rack anymore. Sometimes the leds of the switch 1 and 2 are on, by some banks they are out...what went wrong ? please help. thanks
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