It will work without a capacitor
Caput means Not functional. Sorry. Old slang.
ahh is there a way to check if the driver is spoilt ?
Swap it with one you know works. The other thing to check is to make sure that the arduino is sending the right signals to it. An oscilloscope is ideal here, but you can use a led or multimeter. Just write a simple sketch that drives all the pins you are using high for a second, then low for a second. Just measure the voltage coming from those pins to see if they are working.
i dont really have a second tmc2208 to try on. However i have a DRV8825 stepper driver that i can replace with.
This means "head" but "phoont" used a misspelling of a German word. Confusing at best. Sorry.
No, it does not.
You mean;
Kaput
Tom... 
