Why does the aros table crash periodically in CakePHP?

Question

CakePHP

Good day!
Gentlemen, tell me, from time to time such a situation arises:
select * from aros where rght<>lft+1

1;;"Group";1;"admin";1;10
2;;"Group";2;"moder";11;16
34533;4;"User";34661;"";56578;56533
34530;4;"User";34658;"";69016;69015
34641;4;"User";34769;"";56600;69285
34532;4;"User";34660;"";69015;69320
3;;"Group";3;"users";17;56600
4;;"Group";4;"clients";69282;69320

In the settings, everything is according to the beech, standard, after restoring the normal lft / rght structure, it crumbles again after a while.
What to show? Where to dig?