Thank you for answer immediately!
We also restored ver.5.1.1 to Nexus 7 and confirmed its operation, but it worked without problems.
Apparently, it does not occur with all Android 5.1.1, but seems to be limited to some devices.
However, although the devices for which a crash was reported here are all models manufactured by a Japanese manufacturer, these are reports from multiple manufacturers, so it is unlikely to be a defect by the manufacturer.
The OPPO we referred to is the same error code, so I think it’s the same cause.
If possible, is it possible to check a little more on other Android 5.1.1 smartphones?
In addition, because SQL Chiper 4.0.1 works without any problems, is there no cause for the difference between 4.0.1 and 4.1.x?