Fatal error: Uncaught ImagickException: no decode delegate for this image format `' @ error/constitute.c/ReadImage/504 in /var/iiif/herb/image_proxy.php:191
Stack trace:
#0 /var/iiif/herb/image_proxy.php(191): Imagick->__construct()
#1 /var/iiif/herb/image_proxy.php(136): get_full_image()
#2 /var/iiif/herb/image_proxy.php(32): return_thumbnail()
#3 {main}
thrown in /var/iiif/herb/image_proxy.php on line 191