user warning: Table 'web20_db1.calendar_years' doesn't exist query - an no canlendar

I've tried to upgrade to version 5.x.2 but on the mini calendar display page I get this errors and dont see the calendar:

* user warning: Table 'web20_db1.calendar_years' doesn't exist query: SELECT template FROM calendar_years WHERE year = 2008 AND first_day = 1 in /var/www/web20/web/includes/database.mysql.inc on line 172.
* user warning: Table 'web20_db1.calendar_templates' doesn't exist query: SELECT template FROM calendar_templates WHERE col2 = '01-01' AND leap = 1 in /var/www/web20/web/includes/database.mysql.inc on line 172.
* user warning: Table 'web20_db1.calendar_templates' doesn't exist query: SELECT MAX(weekno) FROM calendar_templates WHERE template = 0 in /var/www/web20/web/includes/database.mysql.inc on line 172.
* user warning: Table 'web20_db1.calendar_years' doesn't exist query: SELECT MAX(id) FROM calendar_years in /var/www/web20/web/includes/database.mysql.inc on line 172.
* user warning: Table 'web20_db1.calendar_years' doesn't exist query: INSERT INTO calendar_years (id, year, first_day, template, weeks) VALUES (1, 2008, 1, 0, 0) in /var/www/web20/web/includes/database.mysql.inc on line 172.
* user warning: Table 'web20_db1.calendar_templates' doesn't exist query: SELECT * FROM calendar_templates WHERE template = 0 AND (start LIKE '02-%' OR end LIKE '02-%') ORDER BY weekno in /var/www/web20/web/includes/database.mysql.inc on line 172.
* warning: array_merge() [function.array-merge]: Argument #2 is not an array in /var/www/web20/web/modules/calendar/calendar.inc on line 268.

Whats wrong?