Solved Error on Creating New Topic

Upon upgrading to latest version everything appeared fine. Today when users create a new forum post the following error occurs:

DateTime::__construct(): Failed to parse time string ([var3_time]) at position 0 ([): Unexpected character

The post actually posts but continues to show the error. Please help.

Database collation check: The collation of your table fields are correct

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Kunena menu details:

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ID	Name	Menutype	Link	Path	In trash
317	Forum	mainmenu	view=home&defaultmenu=255	forums	No
140	Forum Index	mainmenu	Itemid=131	forums/kunena-2014-08-14	No
313	Index of Categories	mainmenu	view=category&layout=list&catid=0	forums/index-of-categories	No
314	Recent Topics	mainmenu	view=topics&mode=replies	forums/recent-topics	No
315	Create a New Topic	mainmenu	view=topic&layout=create	forums/create-a-new-topic	No
316	My Topics	mainmenu	view=topics&layout=user&mode=default	forums/my-topics	No
318	Search Topics	mainmenu	view=search	forums/search-topics	No
131	Forum	kunenamenu	view=home&defaultmenu=133	forum	No
132	Index	kunenamenu	view=category&layout=list	forum/index	No
133	Recent Topics	kunenamenu	view=topics&mode=replies	forum/recent	No
134	New Topic	kunenamenu	view=topic&layout=create	forum/newtopic	No
135	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies	No

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Kunena version detailed: Kunena 5.0.7 | 2017-03-31 [ Gayal ]
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Kunena - AlphaUserPoints Disabled
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Kunena - Community Builder Enabled: access=0 login=1 activity=1 avatar=1 profile=1 private=0
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The menu option used by create-a-new-topic.html is what causes this error. If a user uses the new topic button, rather than the old menu function all works fine except the user can only create the new topic in the forum that they are in.

Editing the menu function and re-selecting the exact same option cleared the problem.