Thread: BUG #15920: ERROR: deadlock detected

The following bug has been logged on the website:

Bug reference:      15920
Logged by:          Ahmed Gaber
Email address:      ahmedgaber2050@yahoo.com
PostgreSQL version: 10.0
Operating system:   ubuntu
Description:

please help me in handling this error 

ERROR: deadlock detected
DETAIL:  Process 29303 waits for ShareLock on transaction 9714808; blocked
by process 28020.
Process 28020 waits for ShareLock on transaction 9715080; blocked by process
29303.