Year range Pension Hommeles

Currently, Pension Hommeles has a year range of 1957-1958: https://www.imdb.com/title/tt0192918/reference/ 

However, it should be 1957-1959, as you can see in the following links:

https://www.imdb.com/title/tt0192918/episodes/?season=2 

https://tvenradiodb.nl/index.php/11989/pension-hommeles.html

https://televisieseries.com/P/pensionhommeles.html

https://www.annie-mg.com/radio-tv-uitzending/pension-hommeles/ 

https://wiki.beeldengeluid.nl/index.php/Pension_Hommeles

Can a staffer fix this please?