If your tables are locked in SQL SERVER using some SSIS or SSRS or some other tools.
For unlock we need to kill process id from sql server .
if your table is locked then SPID=-2 stored in syslockinfo table .
you can't delete directly this process id (SPID=-2)
use this query and kill whatever you got from this query result.
select req_transactionUOW
from master..syslockinfo
where req_spid = -2
KILL '030C2647-E265-4860-817D-5240D9A720D8'