Error message: V is undefined

Hello, I have a problem with the plugin.
I have successfully installed it and set up the API access for the Facebook Graph Api.
When I click on “Create New Social Post” in the dashboard, I get the following error message:

Error
Sorry, an error occured! Don’t worry, I will fix this, so simply let me know about it.
Here is some information about it:
V is undefined

The following warnings appear in the browser console:

06:59:10.185 JQMIGRATE: Migrate is installed, version 3.4.1 load-scripts.php:5:981
06:59:11.417 🟢 Ready to create social post index.js:2:391508
06:59:11.797
[nekoFetch] SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
e https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 d https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
S https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 E https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
k https://test./wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 i https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
vendor.js:2:140745
e https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 d https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
S https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 E https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
k https://test./wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 i https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
06:59:12.164
[nekoFetch] SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
e https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 d https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
S https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 E https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
k https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 i https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
vendor.js:2:140745
e https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 d https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
S https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 E https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2
k https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2 i https://test.***/wp-content/plugins/social-engine/app/vendor.js?ver=1742904724:2

I have tried uninstalling and reinstalling the plugin, but the error persists.
What can I do to fix the problem?
Thank you in advance.