We understand the frustration this causes.
Your website’s professionalism is affected.
If you’re seeing a “Site is using a trial version of the theme” message on your website, especially if you’re using the ‘Pluto‘ theme or any of the related Osetin themes, you’ve come to the right place.
The real reason behind of this error is: pinsupreme.com gone down
The pinsupreme.com website, responsible for managing theme licensing, is permanently gone. Here’s what’s happening:
The pinsupreme.com website, responsible for managing theme licensing and updates, is currently experiencing downtime. This disruption has triggered automatic license deactivation for all themes, including the Neptune premium theme and those developed by Osetin.
This disruption has triggered automatic license deactivation for all themes, including the Neptune premium theme and those developed by Osetin.

It’s important to note that this issue affects legally purchased themes. The problem lies with the developer’s abandonment and the subsequent disruption of the licensing system, not with the legitimacy of your purchase.
We’ve developed a straightforward and effective solution, the “Osetin Theme Fixer,” designed to comprehensively and permanently resolve this licensing issue and save all those from the unfair situation where they already paid for their theme. This solution is applicable to all themes developed by Osetin, the PinSupreme theme provider.
Our Solution: Fixer plugin only for 19 EUR
- You can directly download the plugin
- Follow the included instructions.
- Eliminate the “Trial Version” message instantly.
- Without any coding knowledge or spending any additional development costs get your website on the track
We are committed to helping website owners regain control of their sites and eliminate unwanted trial messages. We provide a safe and reliable solution for themes whose developers have abandoned support.

PLUGIN: 19EUR (DIRECT DOWNLOAD HERE)
INSTALLATION SERVICES (OPTIONAL)
If you need additional support for the installation you can also buy installation services for only 60EUR from the link below, entering your email address we will send you the instructions to arrange the access.
Pay the installation service fee and let us perform a maintenance and install it for you.
Why Choose Us?
- Simple Solution: A plugin that fixes the problem directly.
- Reasonable Price: Only 19 EUR for a guaranteed permanent solution.
- Clear Instructions: Easy-to-follow guide included.
- Reliable Fix: Solves the core licensing issue.
This plugin resolves licensing issues for Pinsupreme (Osetin) themes that rely on the “cerberus” license verification system. These themes have been abandoned by their original developer, leading to a persistent red warning that falsely suggests the site is running a demo version, even if a valid license was previously activated:
Watch the steps How it looks before and after installing the plugin:
How to apply the fix :

“Site is using a trial version of the theme. Please enter your purchase code in theme settings to activate it or purchase this WordPress theme here.”
This plugin suppresses that message for WordPress installations that had a legitimate license in the past. However, it does not function on brand-new installations. If you had to reinstall WordPress, try restoring a backup or manually recovering the “cerberus_code” option from a database backup.
It has been successfully tested on the each of the following Osetin themes and more:
- Neptune theme by Osetin
- Pluto theme by Osetin
- Food Blog by Osetin
- Moon by Osetin (Photography Portfolio Theme)
- Personal Blog Masonry Grid WordPress Theme by Osetin
- Law firm and Legal Attorney WordPress Theme
- Theme Pluto by Osetin WordPress theme
And all themes from Pinsupreme,
Fortunately, we have developed a simple and permanent solution which fixes this error message and saves you spending a fortune to redesign a new website and reconstruct it from scratch with another theme since most of those themes use custom post and ACF plugins and not easy to reimplement into other themes.
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