Unable to change website title

Hi, I’m running a webshop with several plugins like Woocommerce en the Astra theme. Recently I noticed that my website title is changed; every word starts with a capital letter. That’s not what I want, but I’m not able to find the setting to change it.

I tried setting:
– WordPress > Settings > General > Site Title (no effect)
– Customizer > Header > Site Title (no effect)
– Checked RankMath (no effect)

I’m lost…

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