2018-12-17 08:54:00.890 [error] <0.446.0>@ejabberd_sql:check_error:1143 SQL query 'Q39195051' at {nodetree_tree_sql,87}
 failed: [{severity,'ERROR'},{86,<<"ERROR">>},{code,<<"23505">>},{message,<<"duplicate key value violates unique constr
aint \"pubsub_node_nodeid_key\"">>},{detail,<<"Key (nodeid)=(21) already exists.">>},{115,<<"public">>},{116,<<"pubsub_
node">>},{110,<<"pubsub_node_nodeid_key">>},{file,<<"nbtinsert.c">>},{line,434},{routine,<<"_bt_check_unique">>}]
2018-12-17 08:54:00.892 [error] <0.446.0>@ejabberd_sql:check_error:1143 SQL query 'Q115227594' at {nodetree_tree_sql,31
3} failed: [{severity,'ERROR'},{86,<<"ERROR">>},{code,<<"25P02">>},{message,<<"current transaction is aborted, commands
 ignored until end of transaction block">>},{file,<<"postgres.c">>},{line,1591},{routine,<<"exec_bind_message">>}]