So i have a Lectric XP4 Ebike and iddkkk what the heck happened to it but it started making a knock/thud really hard and then a few moments doing that it dont accelerate the bike..it makes the noise but idk its messed up and realllyyyy need to get it fixed ASAP! 🙏🥺 So if anyone who REALLY KNOWS & has KNOWLEDGE about them please let me know if you can possibly take a look at it for me!? Plz and thank you!!