Zoneminder error after upgrade to ubuntu 19

Configuration
1

Hi,

Has any experience any issues with Zoneminder after upgrading to Ubuntu 19?

I am getting the following error in my logs:

Mon Jul 29 2019 23:32:18 GMT+0100 (GMT+01:00)
JSON decode exception caught whileattempting to decode "<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function apc_fetch() in /usr/share/zoneminder/www/api/lib/Cake/Cache/Engine/ApcEngine.php:91
Stack trace:
#0 /usr/share/zoneminder/www/api/lib/Cake/Cache/Cache.php(363): ApcEngine-&gt;read('myapp_cake_core...')
#1 /usr/share/zoneminder/www/api/lib/Cake/I18n/I18n.php(235): Cache::read('cake_dev_eng', '_cake_core_')
#2 /usr/share/zoneminder/www/api/lib/Cake/basics.php(636): I18n::translate('Cache engine &quot;%...', NULL, 'cake_dev')
#3 /usr/share/zoneminder/www/api/lib/Cake/Cache/Cache.php(184): __d('cake_dev', 'Cache engine &quot;%...', '_cake_core_')
#4 /usr/share/zoneminder/www/api/lib/Cake/Cache/Cache.php(151): Cache::_buildEngine('_cake_core_')
#5 /usr/share/zoneminder/www/api/app/Config/core.php(375): Cache::config('_cake_core_', Array)
#6 /usr/share/zoneminder/www/api/lib/Cake/Core/Configure.php(72): include('/usr/share/zone...')
#7 /usr/share/zoneminder/www/api/lib/Cake/bootstrap.php(442): Configure::bootstrap(true)
#8 /usr/share/zoneminder/www/api/app/webroot/index.php(90): includ in <b>/usr/share/zoneminder/www/api/lib/Cake/Cache/Engine/ApcEngine.php</b> on line <b>91</b><br />
"
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/zoneminder/zm.py", line 93, in _zm_request
    return req.json()
  File "/usr/local/lib/python3.7/site-packages/requests/models.py", line 897, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/simplejson/__init__.py", line 518, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.7/site-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/local/lib/python3.7/site-packages/simplejson/decoder.py", line 400, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)