Bukkit

NOTE: If you supply copies of your .yml or console log files, please use pastebin, dropbox, or other service and provide link,  instead of copy/paste of the file into this report. Thanks!

What Version of OnTime and Bukkit are you using?
OnTime: v.3.13.4
Spigot: Build 1649

What storage option are you using? (YML or MYSQL) ?
MySQL

What permissions plugin are you using? (Groupmanager, PEX,bPermissions, etc.)
GroupManager

Please provide a link to a copy of your plugins/OnTime/config.yml:
https://paste.ee/p/WXcVP

What steps will reproduce the problem?
Restarting/Stopping the server will cause the error

What is the expected output? What do you see instead?

Do you have an console log of what happened?
https://paste.ee/p/TIbX7

Are you having a "rewards" problem?  Please provide a link to a copy of your /plugins/OnTime/rewards.yml :
----

Did you turn on OnTime logging (/ontime logfile enable 1)?  If so, provide a link to that file too.

Please provide any additional information below.

This has been appearing since the newest update.

I see the problem. I will have a fix out shortly.