Follow-up->Absences ==> ERROR

after update to 9.0.2 we get red error on 

ERROR : An error occurred on 2021-01-13 at 13:01:25

Absences, what could cause it? Everything else seems to work still ok

Hello,

Your issue is on planning view or in absences view ? 
can you join screenshot please.

Hi the error comes in 2 cases
pasteboard.co/JJztM92.png
this error happens for all users that have actual work assigned, if I set all work to 0 then the error for given user does not appear, the error comes on FIRST day with assigned work

and in absence view
pasteboard.co/JJzvxeS.png

I can't reproduce this, can you show your log files to better define the source of the error.

Your datatbe is on  Postgres or mysql ?
What is your php version ? 

Db: mariadb 10.3.17 (mysql)
PHP 7.4.8

======
BUG #1

Additional note this error only happens with old legacy GUI, with new interface it is not coming.
from log:

2021-01-21 15:31:45.106 ***** ERROR ***** [V9.0.2] on file '/var/www/html/pm/htdocs/model/Absence.php' at line (255)
2021-01-21 15:31:45.106 ***** ERROR ***** [V9.0.2] cause = Undefined variable: mediumTextButton

======
BUG #2

[root@shop logs]# tail projeqtor_20210121.log
2021-01-21 15:22:10.284 ===== TRACE ===== NEW CONNECTED USER 'antti.lukats' (using remember me feature)
2021-01-21 15:22:27.630 ***** ERROR ***** [V9.0.2] ERROR *****
2021-01-21 15:22:27.630 ***** ERROR ***** [V9.0.2] on file '/var/www/html/pm/htdocs/model/PlannedWorkManual.php' at line (346)
2021-01-21 15:22:27.630 ***** ERROR ***** [V9.0.2] cause = Division by zero

this is the line with error
$height=intval($size*($real-$realAdmin)/(($capacity)?$capacity:$resObj->capacity));

a DIRTY fix to:

$height=intval($size*($real-$realAdmin)/max((($capacity)?$capacity:$resObj->capacity),0.1));
fixes the red error ! sure this is not correct fix..

additional note: I have logged to projeqtor from different PC with different language settings, so sometimes comma is , and sometimes its . maybe related somehow?