Hello everyone, i bought that used bike from a guy a month ago and it worked really fine i just noticed that the battery life went down after 2 years of use of previous owner but still managed to reach 50km, the thing is that some days ago y forgot my bike outside and that day rained and when i remembered i putted inside, next day I used for work i have to commute 24km round trip from work daily and it was working a little bit strange, I was just rolling the pedals without making force con the chain and it seems that the torque sensor detects force and activates the motor, and with time getting worse, today the bike was just crazy, at the moment i turned it on or touch a little bit the pedal, the motor starts running at full speed and locked into full throttle and the only way i had to brake, was turning off the bike and turn on again, i think that i fried the controller or maybe i just broke the torque sensor, i cracked it open and water came out splashing the floor, i could barely see the model of the controller but there are some digits left that i cant find its the Santroll controller model wzkd 3615ka and some digits more, what could happen, what can i do, if i have to change the controller i can put any controller or that specific one, and whats the full name model of it? Thank you, i hope someone can help me with this