While WordPress is really easy to use, there are some common WordPress errors that can make you panic. In fact, there are a number of common WordPress problems that most users are likely to encounter at least once. An internal server error can have a number of different reasons and thus several ways to try and solve it

Theme error

1. Plugin error
2. Internal server error
3. Database connection failed
4. 404 page not found
5. Woocommerce Plugin error]
6. Login error
7. Image Uploading problem email issues(Email is not sending to your mail) etc
8. searching error
9. Visual composer’s error
10. MailChimp error
11. Coding error
12. fix syntax error in site
13. fix the error establishing database connection
    
14. fix WordPress posts returning 404 error
15. fix PHP 
16. fix CSS
    
17. javascript
18. update your site 
19. finding blocks
20. making errors free 
21. remove unwanted plugins or function
22. Fix WordPress Keeps Logging Out Problem
23. working under your suggestion
    
24. improve your site 
25. add some valuable functions(if possible)
    

Integrating Plugins