Unable To Access My LINE Account Due To Unexpected Security Lock

I am using a normal MTN mobile Line, and my account was suddenly logged out from both my phone and my PC. I had just sent some messages and was away from my device for about a minute, and when I came back I saw that I had been logged out. When I tried to log in again using my email and password, I received a message that my LINE account was locked due to too many incorrect login attempts, even though I did not make those attempts. My phone line is not working properly and I am also worried that someone may have accessed or reported my line, even though I was only having a normal conversation. Because of this situation, I cannot use my account as before and I feel insecure about the safety of my line and data. I request that my account and line access be restored as soon as possible and that any possible unauthorized access to my account be checked and stopped. I also ask MTN to secure my account and inform me clearly about why my account was logged out and locked.