@StingerMKO : The error say the MySQL path is not right. Can you add MySQL using "Quick add":
Menu > Tools > Quick add > mysql-5.7
Then switch MySQL version and start again.

@SkyWalker : You're welcome
To restore, just open Menu > Laragon > Terminal and run:

mysql -u root -p < PATH-TO-YOUR-BACKUP.sql

@patrick_wc : Apache uses https port 443 by default. If you use Nginx as default, just change the https port to 443 for Nginx in Menu > Preferences > Services and Ports
Hope it helps.
Cheers!

@Porotto : What is the error message?
If you did not change any thing in Laragon, I guess the root cause may lie in the DNS.
You also need to check logs to figure out the issue.

@Dustin : Nice! Glad to hear that

@SkyWalker : Can you try:

1. Stop All
2. Rename folder C:\laragon\data\mysql-8 to C:\laragon\data\mysql-8.bak
3. Rename C:\laragon\data\mysql to C:\laragon\data\mysql-8
4. Start All

Note: C:\laragon\data\mysql is data dir for MySQL 5.7, when you change to mysql-8, Laragon will upgrade the data dir to MySQL 8 format.

In the meantime, please re-try it yourself, following this post:
https://www.php.net/manual/en/mongodb.tutorial.library.php

Two main points:

1. Ensure MongoDB extension enabled
2. Install Composer for PHP library:

composer require mongodb/mongodb

@wice : I guess you missed some steps in my tutorial. Let me create a new one with working PHP example.

@wice : I've tested and it works fine:

Please ensure phpinfo() shows that you added MongoDB first.

I see that you did everything right.

Can you try with the latest MongoDB extension? From your PHP version, you can use this one:
https://windows.php.net/downloads/pecl/releases/mongodb/1.5.5/php_mongodb-1.5.5-7.1-ts-vc14-x64.zip