Problem On-board clocks do not work


Hello, I have an Audi a4 from 2004 1.9 tdi 131 hp, I ran out of battery once and I put wires on it and after that no interior light comes on, the tachometer, the speedometer don't work anymore, neither do the clock lights. if I turn on the interior light, the clock lights come on and an oil pump appears on the large display in red, I can no longer see anything on the display except the oil pump.

which is the cause. I thought of buying other watches, I saw on the net that they are 150 euros, is that right?