Warning: Illegal string offset 'weekday_number'

Hi

Just upgraded from Appointments 1.9.6 to 2.0.3 and got a couple of bugs already :slight_frown:

1) No Appointments are showing as available despite the working hours being set correctly
When I click on "next month" button to see if it's just the current month I'm having issue with I get an out of memory error

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 32 bytes) in /var/sites/t/mysite.com/public_html/wp-includes/formatting.php on line 2818

2) On the break hours section of the settings page I'm getting the error message

Warning: Illegal string offset 'weekday_number' in /var/sites/t/mywebsite.com/public_html/wp-content/plugins/appointments/includes/class-app-worker.php on line 826

I've disabled all my MUplugins but still not luck. Everything working ok before upgrading plugin

Support is enabled. It's my test site fortunately enough

Kind Regards
Kieran