Internal server error on AdminProcessManagment in new session.

[svenoe]

Please try to reproduce on OTOBO 11.0 but see, whether older versions are affected:

1. Log into OTOBO, go to AdminProcessManagement and open a process.
2. In another tab remove your session in the session management and login again (to start a new session).
3. In the first tab directly clock on "new activity"

To my understanding from looking at the code this leads to an undefined ScreensPath:

otobo/Kernel/Modules/AdminProcessManagementActivity.pm

Lines 54 to 56 in 52c1cbc

	$Self->{ScreensPath} = $Kernel::OM->Get('Kernel::System::JSON')->Decode(
	Data => $SessionData{ProcessManagementScreensPath}
	);

And a following

Modification of non-creatable array value attempted, subscript -1 at /opt/otobo/bin/psgi-bin/../../Kernel/Modules/AdminProcessManagementActivity.pm line 672.

in:

otobo/Kernel/Modules/AdminProcessManagementActivity.pm

Line 672 in 52c1cbc

if ( $Self->{ScreensPath}->[-1]->{Action} eq 'AdminProcessManagement' ) {