What is this strange error when creating a personal facebook profile?

Question

Facebook

Some kind of error when editing the place of work for my personal profile on fb.
I'm trying to add a position in the place of work.
But every time I get such an error, I attached a screen
. I have been trying to do this for several days.
At the same time, when you enter a position, the most standard positions are offered by Facebook.
If you select one of them, it will save without errors. But if you write your own, then you get such an error.
At the same time, I tried on my girlfriend’s account, also write a position not from the default list (the same one that I want to add), everything worked for her.
As if my account was blocked for this action, which sounds very strange. There are no other locks on my account. From this account, I did not do any actions for which you can get a ban, this is my personal account.
Posted in "report a problem on facebook" but I don't think they will respond