Leader fox arimo maybe the controller is broken.

[capybarrel]

Good afternoon.
I apologize for the English.
I bought a gift for my girlfriend's son, a used Leader Fox arimo bicycle. In the Netherlands recently, I thought that in the first place the seller is honest, in the second that even if there will be any problems I will find a workshop and eliminate the breakdown. But I was wrong, no one wants to repair this bike.
I have no experience with electric bicycles. When I bought it, it worked, but it didn't display the battery level. The seller said it was because of the new display, I also have the old one on hand with a crack, it's not it, I swapped the old and the new one, the problem doesn't go away.
The problem:
After 2 weeks after purchase, error 01 appeared (manual says it is communication error). I removed the battery and took out the controller to see if there was a loose contact. I found nothing, reassembled the bike and the error went away. If I press and hold the minus button, the motor starts to run at 6 km/h. But now the bike does not respond to pedal movement. I assume that the problem is in the controller and I want to replace it, but I can't find such a controller on the internet.
I think the problem is in the controller as the motor works, after I wiggled the contacts in the controller error 01 went away but now the bike is not responding to pedaling. I thought it might be the hall sensor, but it was working before I tried to deal with error 01.
What can I do in this case if I can't find this controller on the internet? Is there any way to install a different controller than the native controller?
Or maybe someone can recommend me a workshop in the Netherlands, I would rather go to the experts, at the moment I live in the city of Utrecht, I went around almost all workshops, no one wants to take on the repair

[capybarrel]

I ordered the set, controller, display, pas sensor and brake handles (the handles were unnecessary as the bike has hydraulic brakes and the handles in the kit are for the pads).
I swapped the controller and display first, leaving the pas sensor native. The bike worked, but started to jerk violently when I tried to ride it. Then I glued the pas sensor from the kit and the bike started working perfectly.
Problems I encountered, first of all the kit comes with "5 in 1 cable" which is unrealistically long, apparently it is assumed that this controller should be in the back of the bike, on this bike it can only be installed at the top of the frame near the handlebars, so I hardly put it there with this cable.
In turn the cable for the motor is short and I bought an extension cord for 10 euros, and even with the extension cord it was barely enough.
But that's not so important, the main thing is that the bike works amazingly well now

[Notna]

Modbreak:

I am truly sorry, however this is a Dutch speaking (written?) forum and therefore we do not allow full English posts or topics on GoT. As such I am forced to close this topic.

However, congratulations on a succesful repair nonetheless.