Can't decrypt files

Steps to reproduce

1.Files was uploaded from owncloud client 2.5.4 (ubuntu 18.04) (from user1)
2. After was sync with new pc (from user1)
2. We have trouble with “too many open files”
3. Change password for user1 from db
4. Change password for user1 from web admin -> users -> change password
5. After was sync with new pc by owncloud client 2.5.4 (from user1) multikeydecrypt with share key faild (no start line)

Expected behaviour

We must open files or sync without errors.

Actual behaviour

We can not open files and get the following errors:

  1. 0906D06C:PEM routines:PEM_read_bio:no start line
  2. 0607A082:digital envelope routines:EVP_CIPHER_CTX_set_key_length:invalid key length
  3. 04065072:rsa routines:RSA_EAY_PRIVATE_DECRYPT:padding check failed
  4. 0407109F:rsa routines:RSA_padding_check_PKCS1_type_2:pkcs decoding error

Server configuration

Operating system: CentOS7 3.10.0-957.12.2.el7.x86_64

Web server: Apache/2.4.6 (CentOS)

Database: 5.5.60-MariaDB MariaDB Server

PHP version: PHP 7.2.19

ownCloud version: 10.0.10 (stable)

Updated from an older ownCloud or fresh install:

Where did you install ownCloud from: official site

List of activated apps:

Default encryption module ( Bjoern Schiessle, Clark Tomlinson )

Are you using encryption: yes

Client configuration

Browser: Firefox 69.0.1

Operating system: Ubuntu 18.04