OwnCloud update from 8.1.3 to 9.1.6 stable

Dear Support,

Server Specs

Apache:
Server version: Apache/2.4.6 (CentOS)
Server built: Apr 12 2017 21:03:28

PHP:
PHP 7.0.21 (cli) (built: Jul 6 2017 11:19:16) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.21, Copyright (c) 1999-2017, by Zend Technologies
with Xdebug v2.5.5, Copyright (c) 2002-2017, by Derick Rethans

Database:
mysql Ver 15.1 Distrib 5.5.52-MariaDB, for Linux (x86_64) using readline 5.1

I have the following Problem after updating to the newest Version via Package Manager on CentOS 7:

zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted

Also I am receiving the CSRF issue when trying to sing into my account. I read about disabeling the shares which will be a catastrophic event due to the fact that we use OwnCloud as our customer File Sharing base.

sudo -u apache php occ upgrade RESULT:
ownCloud is already latest version

sudo -u apache php occ maintenance:repair RESULT:
- Repair mime types
- Clear asset cache after upgrade
- Asset pipeline disabled -> nothing to do
- Generate ETags for file where no ETag is present.
- ETags have been fixed for 0 files/folders.
- Clean tags and favorites
- 0 tags of deleted users have been removed.
- 0 tags for delete files have been removed.
- 0 tag entries for deleted tags have been removed.
- 0 tags with no entries have been removed.
- Drop old database tables
28/28 [============================] 100%
- Drop old background jobs
- Remove getetag entries in properties table
- Removed 0 unneeded "{DAV:}getetag" entries from properties table.
- Repair outdated OCS IDs
- Repair invalid shares
- Remove old share propagation app entries
- Remove old (< 9.0) calendar/contact shares
4/4 [============================] 100%
- Fix permissions so avatars can be stored again
2/2 [============================] 100%
- Remove shares of a users root folder
- Repair unmerged shares
- Fix classification for calendar objects
0/0 [>---------------------------] 0%
- Fix component of birthday calendars
- 48 birthday calendars updated.

Any solutions or comment on this matter is greatly appreciatet !!!

Add the following argument into /etc/sysconfig/httpd on Red Hat-based distributions and to /etc/apache2/envvars on Debian-based distributions:

USE_ZEND_ALLOC=0

Hope this helps xD