You mention ward/stake websites. The only place stakes and wards have websites is in the classic LUWS, which will be deactivated in two weeks. If you are talking about the classic LUWS then my guess is the stake has migrated to the calendar to the LDS.org
Calendar tool.
If you are talking about
a calendar for the stake on the LDS.org Calendar tool then I suggest checking your calendar subscriptions to make sure you have subscribed to the calendar you need.
There are two things you need to do to view a particular calendar on your main calendar page. First you must subscribe to the calendar at the Settings (gear icon)/Subscriptions page. There are three groups of calendars from which you can choose by clicking the blue linked names: Ward Calendars, Stake Calendars, and Churchwide Calendars. Once you have subscribed to the calendars you want then you have the option on the main calendar page to view any or all of the calendars to which you have subscribed by checking the calendar name in the "Subscribed Calendars" box on the left of the main calendar page.