Can not switch (like guest) from Default Theme to IPS Theme

Mt default - front-end Theme is illuminated

MY second theme is IPS V5

Guests can click (Choose theme) but when click IPS Theme = nothing - go back to illuminate

links in web browser

https://www.oldlibar.com/index.php?%2Ftheme%2F=&csrfKey=569ea41801f22a70b2751debc8a31614

if can help you!

regards

You can test on my site - like guests