running PHP5.6 on IIS/Windows (WIMP stack) I get the following error:
PHP Fatal error: Class 'ikTestimonialsCustomPostType' not found in [...]\wp-content\plugins\easy-testimonials\easy-testimonials.php on line 471
This seems related to the same update issues. I rolled back to the previously available package on packagist (1.1 — not to harp, but was that the last stable release?) and it seems to work. Are you no longer supporting PHP 5.6? It seems to work fine in 5.6 on my Linux Dev machine…