Hi everyone,

We upgraded from 2.4.5 to 2.6.5, everything went fine apart from a notification we're getting for the rss_plus block:

The block rss_plus does not define the standard capability block/rss_plus:myaddinstance

• line 617 of /blocks/moodleblock.class.php: call to debugging()
• line 590 of /blocks/moodleblock.class.php: call to block_base->has_add_block_capability()
• line 236 of /lib/blocklib.php: call to block_base->user_can_addto()
• line 1930 of /lib/blocklib.php: call to block_manager->get_addable_blocks()
• line 1047 of /lib/blocklib.php: call to block_add_block_ui()
• line 353 of /lib/blocklib.php: call to block_manager->ensure_content_created()
• line 10 of /theme/ravensbourne/layout/general.php: call to block_manager->region_has_content()
• line 870 of /lib/outputrenderers.php: call to include()
• line 800 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
• line 153 of /my/index.php: call to core_renderer->header()

Can someone advice on how to resolve this?

Thanks so much.