Application crashed while writing as content provider

[Explorare]

[Environment]
Android 6.0.1 (kernel 3.10.84)
ESD Lite v2.0.0.237
andOTP v0.8.0-play

[Steps to Reproduce]

1. Mount a container (VeraCrypt, AES, SHA-512, exFAT), and there is a banner showing "EDS service is running" in notification area.
2. Open andOTP, make a backup
3. Select destination from content provider - ESD lite mounted container, and save

[Issue]
andOTP said "Exported to external storage successfully." but system said "EDS Lite has stopped." There is a banner in notification area kept showing "ESDLite saving changes" . The "EDS services is running" disappeared. And when I open the ESDLite, it asked me to unlock the container again. No changes were made to the container after I unlock it. And the "Saving changes" notification kept there.

I also tried mounting the container and copy a file from file system to it using Total Commander and met the same issue.

And I don't think I mount it in read-only mode. I copy a file using ESDLite's internal file manager and the operation succeed with the message "start processing".

And here is the error log eds-log-20210409102824.txt

Thanks