Temporary directory error

[Looper Nagic]

Hello,
Can someone help me? I cannot find other topics that has this error.
I am using OpenSuse Leap 15.1 and I cannot mount my wholly encrypted external drive. The whole partition was encrypted in Windows and I succesfully mounted it using the same OS.

Now whether I use the GUI or in terminal the same error occur.

sudo veracrypt --mount /dev/sdb1
sudo: unable to open /var/lib/sudo/ts/NaN: Read-only file system
[sudo] password for root: 
Enter mount directory [default]: 2
Enter password for /dev/sdb1: 
Enter PIM for /dev/sdb1: 
Enter keyfile [none]: 
Protect hidden volume (if any)? (y=Yes/n=No) [No]: 
Error: Failed to create a file or directory in a temporary directory.

Please make sure that the temporary directory exists, its security permissions allow you to access it, and there is sufficient disk space:
/tmp/.veracrypt_aux_mnt256

[Looper Nagic]

I found the problem is the system, because it is mounted as read only.
I can't change the folder permissions or change anything using the file manager. And then I got AMD-VI bug after restart.

This problem is solved.