Error on Uploads

I recently updated my server to PHP 7.4 and now Im recieving this error below when i try to upload images. I dont believe i was recieving this error before the upgrade

WordPress version 5.5.3
Current theme: Nightshade (version 1.4)
Current plugin: WP Photo Album Plus (version 7.6.01.006)
PHP version 7.4.12

Error Details
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An error of type E_ERROR was caused in line 22 of the file /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-wrappers.php. Error message: Uncaught Error: Call to undefined function imagecreatefromjpeg() in /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-wrappers.php:22
Stack trace:
#0 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-photo-files.php(577): wppa_imagecreatefromjpeg(‘/home/crosssob/…’)
#1 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-photo-files.php(407): wppa_create_thumbnail(33868)
#2 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-admin-functions.php(892): wppa_make_the_photo_files(‘/home/crosssob/…’, 33868, ‘jpg’, true)
#3 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-upload-common.php(187): wppa_insert_photo(‘/home/crosssob/…’, ‘1721’, ‘diamondp-10.jpg’)
#4 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-upload.php(361): wppa_upload_one_item(Array, ‘1721’, ‘upload’)
#5 /home/crosssob/public_html/sob/wp-content/plugins/wp-photo-album-plus/wppa-upload.php(79):