How do I get into the Minecraft (Java) server from my friends?

My friends have been playing Minecraft together for a while. Of course, I also wanted to play, so I reloaded Minecraft on my mobile phone (Huawei P20). I hadn't played Minecraft in a long time, but during that time I got a new cell phone number. So I was asked to update my number and that's what I did (it takes 4 weeks until May 14th).

So today the day came when I was supposed to play along, but unfortunately it didn't work out. At first I didn't see if my buddy (btw the owner of the world) is online even though I had already added him as a friend and he had me too. The owner of the world owns a switch from which he also plays Minecraft. I restarted my phone until I could see if it was online. Then I clicked on the world in which everyone was already inside. It has loaded then it said: "No connection to the world". Then I told him to send me an invitation, which he did. I still had my laptop on and when he sent it to me I got it only seen there and not on my phone.

Ultimately, nothing worked and my buddies played alone.

Please help me, I would really like to play with my friends.

Since mobile is the Bedrock version, you can't play with your friends who use Java.

Bedrock and Java Adobe 2 different games… They are not compatible…

However, the Java Server Admin can use a tool called "geyser" to incorporate a kind of translation function…

https://github.com/...wiki/Setup

But two of my buddies also play on cell phones?

Doesn't work, then it's Bedrock

It is also prescribed to me