Failure in schedule_renewal task operation

[zzet]

INFO -- : [177e9831-fc1a-4a42-ae07-855b8fe4c567] Worker started for queue 'queue_name'
INFO -- : [177e9831-fc1a-4a42-ae07-855b8fe4c567] Worker processed 1 tasks from queue `queue_name`
#<Thread:0x0000563af8768598@/bundle/gems/qyu-1.0.1/lib/qyu/models/task.rb:205 run> terminated with exception (report_on_exception is true):
/bundle/gems/qyu-1.0.1/lib/qyu/utils.rb:6:in `seconds_after_time': undefined method `+' for nil:NilClass (NoMethodError)
 	from /bundle/gems/qyu-1.0.1/lib/qyu/models/task.rb:203:in `schedule_renewal'
 	from /bundle/gems/qyu-1.0.1/lib/qyu/models/task.rb:214:in `block in schedule_renewal'