Hoster wont open / runtime error

[Tronman]

I noticed the other day that about 130 songs were not showing in Hoster that were in my database. I did rebuild database and I stopped it in the middle of the process because it was taking so long. From that day Hoster will not open. This is the error message: (Runtime error). This application has requested the runtime to terminate it in an unusual way. Please contact applications support team for more information. I have reinstalled it (Hoster) multiple times to no avail. I have done chkdsk also. I have a Lenovo IdeaPad with windows 8.1, 1T hard drive, 8G ram, using Hoster 5.50.04. Hoster starts to open and immediately the message comes up. Also, I cant figure out how to remove all those back slashes. Sorry!