array_merge argument error ? Need to Fix

I have 2.3.x OC and I am using Clickboom Theme

I was saving my changes on home page but when I clicked on "Save and Stay" everything automatically removed from page and it is showing the error you can see the attached images also:

ERROR: Warning: array_merge(): Argument #2 is not an array in /home/snhuaeb2b/public_html/admin/controller/extension/module/so_page_builder.php on line 177

Check and let me know how it solve this ?

Ask here
https://themeforest.net/item/clickboom- ... e/19616752

Or post in Commercial section