Using ls on seaf-fuse mount point throws input/output error

When I run ls command seaf-fuse mount point directory it shows only few user-directories and throws ls: reading directory /mnt/seaf-fuse/: Input/output error.
There are around 150 users on first server and ls command shows only 26 user-directories, on second server ls shows 29 user-directories of around 200 users.

First server works on CentOS Linux release 7.7.1908 (Core) Seafile 7.0.5.
Second on CentOS Linux release 7.6.1810 (Core) Seafile 6.3.4

There no error message on seaf-fuse log.

Please help to fix this.