Personalization not working with Solr Search

Does Personalization based on keyword search work with Solr Search?

The module is successfully tracking users based on page visits and search in native Drupal search, but somehow I'm not able to get tracking by keyword search working with solr/search api.

I added the matching keyword | term pairs, ensured that there are nodes referencing the terms and then tried searching on several of the added keywords - no suggested content or change in the personalization statistic

Undefined index: summ in custom_similar_content_block_get_content()

Notice: Undefined index: summ in custom_similar_content_block_get_content() (line 411 of /var/www/html/devsite/sites/all/modules/custom_similar_content/custom_similar_content.module).
Notice: Undefined index: summ in custom_similar_content_uasort() (line 448 of /var/www/html/devsite/sites/all/modules/custom_similar_content/custom_similar_content.module).
Notice: Undefined index: summ in custom_similar_content_uasort() (line 457 of /var/www/html/devsite/sites/all/modules/custom_similar_content/custom_similar_content.module).

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