Module K2 Content as Timeline

HI
I do not know English well. Sorry.

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Module K2 Content as Timeline

Previously worked correctly.
Now displays this message:

0 Call to undefined method K2HelperHTML::loadjQuery()

Joomla 3.7.5
K2 v 2.8.0

Why?

Hi,
Can you create a ticket in here: www.omegatheme.com/helpdesk/scp/index.php or send mail to contact@omegatheme.com
and give us ftp and admin information
I'll fix for you