Uncaught Error: count(): Argument #1 ($value) must be of type Countable|array, null given
in /web/aae/dept/dev/wp-content/themes/uw-theme-child/seminar.php on line 236

Call stack:

1. seminar_format()
   wp-content/themes/uw-theme-child/seminar.php:175
2. include('/web/aae/dept/dev/wp...me-child/seminar.php')
   wp-includes/template-loader.php:106
3. require_once('/web/aae/dept/dev/wp-includes/template-loader.php')
   wp-blog-header.php:19
4. require('/web/aae/dept/dev/wp-blog-header.php')
   index.php:17