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I have an old ebike which has a problem with a controller. I want to replace controller but I can't find a controller with proper connector for a motor. This is a connector which I have. How can I find a controller with same connector?

Hello, I have a problem with an old e-bike Giant Twist Express RS2. After falling it doesn't assist anymore. It starts to assist just after turning on but stops in 1 second. And I noticed strange sypthom: when I rotate the wheel, LED indicators of charge level are scrolling together with wheel...