PHP error

Hello,

Versions Version 1.3.8 and Version 1.3.9 cause the following error:

Message: explode() expects parameter 2 to be string, array given

Location:
`wp-includes/class.wp-dependencies.php:166
explode()
wp-includes/class.wp-dependencies.php:166
WP_Dependencies->all_deps()
wp-includes/class.wp-styles.php:371
WP_Styles->all_deps()
wp-includes/class.wp-dependencies.php:106
WP_Dependencies->do_items()
wp-includes/script-loader.php:2739
wp_add_iframed_editor_assets_html()
wp-includes/class-wp-hook.php:303
do_action('admin_footer-post.php')
wp-admin/admin-footer.php:105`

Please advise a fix.
Thank you