Error when adding Shortcode to Product page

Hello, after adding 30 tables to my website I got a Problem.
when I add shortcake to show table on a product page I get this error :

Warning: json_decode() expects parameter 1 to be string, object given in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 326

Notice: Trying to get property ‘colNumber’ of non-object in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 27

Notice: Trying to get property ‘rowNumber’ of non-object in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 28

Notice: Trying to get property ‘mergedCells’ of non-object in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 29

Notice: Trying to get property ‘colHeaders’ of non-object in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 30

Fatal error: Uncaught TypeError: Argument 1 passed to WPDataTableRows::setColHeaders() must be of the type array, null given, called in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 30 and defined in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php:92 Stack trace: #0 /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php(30): WPDataTableRows->setColHeaders(NULL) #1 /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php(334): WPDataTableRows->__construct(Object(stdClass)) #2 /home/tlmmphnt/www/wp-content/plugins/wpdatatables/controllers/wdt_functions.php(539): WPDataTableRows::loadWpDataTableRows(’35’) #3 /home/tlmmphnt/www/wp-includes/shortcodes.php(343): wdtWpDataTableShortcodeHandler(Array, ”, ‘wpdatatable’) #4 [internal function]: do_shortcode_tag(Array) #5 /home/tlmmphnt/www/wp-includes/shortcodes.php(218): preg_replace_callback(‘/\\[(\\[?)(wpdata…’, ‘do_shortcode_ta…’, ‘<tabl in /home/tlmmphnt/www/wp-content/plugins/wpdatatables/source/class.wpdatatablerows.php on line 92
Il y a eu une erreur critique sur ce site.

how could I fix this ?
Thanks.

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