Workplace says I’m not required anymore?

I attempted to reach you a few times by phone and SMS to inform you that, unfortunately, due to changes in the shift structure and staffing needs, the client has decided that your services are no longer required on site. We will do our best to find you alternative employment as soon as possible. Thank you for your understanding. What does this even mean lol thank you for understanding, understanding what exactly? Please no judgement. Just wondering what they’re tryna say here cause they had new employees just start. I started before them. How is this fair? I do everything correctly and know how to do my job?
Workplace says I’m not required anymore?
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