Vendor Add Product in FES error in PHP 8

Hello,

As PHP prior to v8 are reaching end of life , but I am still on 7.8 because of the following issue, thought it was rectified but is persistent.

When I use PHP v8 for my site the FES Vendor Add Product Form gives following error :

 

[26-Feb-2023 14:26:26 UTC] PHP Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, string given in /home/wp-content/plugins/edd-fes/classes/fields/checkbox.php:123
Stack trace:

0 /home//wp-content/plugins/edd-fes/classes/fields/checkbox.php(123): in_array('Yes', '')

1 /home//wp-content/plugins/edd-fes/classes/abstracts/class-form.php(273): FES_Checkbox_Field->render_field_frontend(6914, false)

2 /home//wp-content/plugins/edd-fes/classes/frontend/class-forms.php(357): FES_Form->render_form_frontend(6914, false)

3 /home//wp-content/themes/mayosis/fes_templates/frontend-new-product.php(3): FES_Forms->render_submission_form()

4 /home//wp-includes/template.php(785): require('/home//…')

5 /home//wp-content/plugins/edd-fes/classes/frontend/class-templates.php(161): load_template('/home//…', false)

6 /home//wp-content/plugins/edd-fes/classes/frontend/class-templates.php(112): FES_Templates->fes_locate_template(Array, true, false)

7 /home//wp-content/plugins/edd-fes/classes/frontend/class-dashboard.php(187): FES_Templates->fes_get_template_part('frontend', 'new-product')

8 /home//wp-includes/shortcodes.php(355): FES_Dashboard->display_fes_dashboard('', '', 'fes_vendor_dash…')

9 [internal function]: do_shortcode_tag(Array)

Complete Log Paste : https://paste.drhack.net/?97c8a77804893d75#CNUSURfiFFWBeYRGFBdepK1L1wdwWsVVtzCvDjT38kPW

On vendor add product screen I am using a ‘Checkbox’ from “Add Extension Creation Field” which I believe is giving the error, but would like help in resolving this issue. If i remove the Checkbox field , the page would load …

But I would like to continue getting the checkbox. Where should I exlpore ?

Thanks