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If you are capable of working safely with electrics then connect the bulb directly and see if it works. Or connect the dimmer module to a dimmable bulb. It's also relatively easy to test the voltage from a dimmer if you have a multimeter. It sounds like you are not really equipped to diagnose the problem.
Dimmer modules do fail fairly regularly. I'm just not sure why you would persevere trying to test one with non dimmable bulbs.
Yeah I get that using non dimmable LEDs can result in flickering but I’m getting no light at all so trying to work out of the dimmer module is broken or there’s something else wrong