Hello Uchiha Itachi,
Unfortunately, as seen in my post, it is on my local wamp environment (http://mysite.local:81/) so I can't allow access at the moment.
Some info that might be useful to you in order to replicate the error are the following:
WampServer 3.1.8
Joomla 3.9.5
Apache 2.4.39
MariaDB 10.3.13
PHP 7.2.10
TzPortfolio+ 2.2.2
TzPortfolio Layout-Style ArtGallery
Isotope PACKAGED v3.0.6
Thanks