[JaKe Elite]

What causes this error?

Код:

[10:37:17] [Warning] db_query: Query failed: database is locked
[10:37:17] [Error] db_free_result(): invalid result handle 0
[10:37:17] [Error] db_free_result(): invalid result handle 1

There is this problem like when I try to connect in the server - The server won't recognize that there is already a row registered under my name. However what I noticed is, It recognized my account the first time I logged in but as soon as I relogged (having 2 players in the server already) the server won't recognize my account anymore and is prompting me to register an account, Why is that?