"Dbcc checkdb showed a database to have consistency errors, however running repair_allow_data_loss resulted in the following error
Server: Msg 8966, Level 16, State 1, Line 2
Could not read and latch page (1:1370) with latch type SH. sysindexes failed.
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Please could you tell me how to fix it, and how it occurred in the first place?