Parse error on new version

Hello,
I installed the new version yesterday and it has an error:

Anyone can help me?

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /home/patoka/public_html/wp/wp-content/themes/activello/inc/libraries/epsilon-framework/class-epsilon-framework.php on line 140

In line 140 it is written:$response = $class: : $method( $args );

Hey there,
Hope you’re doing well today

Kindly go to /home/patoka/public_html/wp/wp-content/themes/ and rename the activello folder to activello_old and try installing the theme from Appearance > Themes > Add New > Search for Activello.

Please let me know if this helps,

Best Regards,
Support

Hi,
It still has not worked. I renamed the old folder and when I installed it again the same problem appeared.

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /home/patoka/public_html/wp/wp-content/themes/activello/inc/libraries/epsilon-framework/class-epsilon-framework.php on line 140

=(

Please try using the solutions posted in the following topic.

https://colorlibsupport.com/t/help-my-site-has-disappeared-after-the-theme-update/