Please contact the author of your theme, we see you are using Dolife theme and maybe the author has customized our code. You can try to switch to the default theme of WordPress, the problem will be resolved
Hello, I contacted the authors of the purchased theme, I changed to the main theme and the error appears. From the support of the purchased theme, they replied that: If you are still getting that error with the default theme enabled, it means that this error is not related to theme. – https://test.3lchange.com/courses-archive/
