This error is usually caused by wrong border polygons, when route start or end point does not belong to any mwm region, see #3815 for more details

For Interstate I-22 it’s 34.210622, -88.187329
For Interstate I-10 it’s 30.474466, -88.400431
Long pressing on either location on the map automatically displays a system error message if you choose either as a starting or ending location.
Note: Not all crossings of the state boundaries creates a system error message. The combined interstates below cross the very same state boundaries line.
For Interstate I-20 & I-59 boundary crossing at 32.448998, -88.403869 it doesn’t doesn’t create a system error message and creates a route just fine.