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I'm the new webmaster of a website built on BeTheme 12.4 's child theme. I wasn't able to update a wp page, so i tried to change BeTheme Parent Theme with the newest one.
For tests purposes I upgraded manually my BeTheme theme from version 12.4 to 25.1.1 on my localhost (macos big sur w/ apache 2) with php 8, mysql 8.0.22 and wp 5.7.3.
I can't view any page and got this critical message:
Fatal error: Uncaught TypeError Cannot access offset of type string in betheme/style.php:111
#0 wp-content/themes/betheme/functions/theme-head.php(803): include_once()
#1 wp-content/themes/betheme/functions/theme-head.php(483): mfn_styles_dynamic()
#2 MDE/wp-includes/class-wp-hook.php(292): mfn_styles_inline('')
Please how can i fix this issue?