Seems I have a similar problem.

Array
(
[0] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/includes/wp_booster/td_api.php
[line] => 337
[function] => error
[class] => td_util
[type] => ::
[args] => Array
(
[0] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/includes/wp_booster/td_api.php
[1] => td_api_base::mark_used_on_page : a component with the ID: tdm_sub_footer_template_1 is not set.
)

)

[1] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/includes/wp_booster/td_api.php
[line] => 154
[function] => mark_used_on_page
[class] => td_api_base
[type] => ::
[args] => Array
(
[0] => tdm_sub_footer_template_1
)

)

[2] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/includes/wp_booster/td_api.php
[line] => 949
[function] => get_key
[class] => td_api_base
[type] => ::
[args] => Array
(
[0] => tdm_sub_footer_template_1
[1] => file
)

)

[3] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/footer.php
[line] => 91
[function] => _helper_show_sub_footer
[class] => td_api_sub_footer_template
[type] => ::
[args] => Array
(
)

)

[4] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-includes/template.php
[line] => 688
[args] => Array
(
[0] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/footer.php
)

[function] => require_once
)

[5] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-includes/template.php
[line] => 647
[function] => load_template
[args] => Array
(
[0] => /home2/anielkre/public_html/vo411/wp-content/themes/Newspaper/footer.php
[1] => 1
)

)

[6] => Array
(
[file] => /home2/anielkre/public_html/vo411/wp-includes/general-template.php
[line] => 76
[function] => locate_template
[args] => Array
(
[0] => Array
(
[0] => footer.php
)

[1] => 1
)

)

)