Plugin conflicts

When I first started using WordPress, I fell in love with its freedom: if I needed a feature, I could install a plugin; if I wanted to change the look, I could change the theme; if I didn't know any code, I could create a really beautiful site with just a few clicks. However, it wasn't until I ran into the mighty wall of ‘HTTP 500 error“ that I realized that behind that freedom was a world of very rigid technical structures. ⚠️ ”The page is not working." I opened my blog, the screen went white, and my browser displayed a cold error message: HTTP ERROR 500. At first, I thought it was just a slow server...