Conflict with 'The Event Calendar'

I am using 2 plugins 1. The Event Calendar 2. WP Catalogue
I have created few categories for 1 and 2. For example in the event calendar I have created ‘techevent’. Now when I click ‘techevent’ in the post without ‘WP Catalouge’ installed everything works fine and it gets redirected to a page which lists all events with category ‘techevent’.
But when I activate ‘WP Catalouge’ on clicking ‘techevent’ it lands at a page which tries to list some weird information from ‘WP Catalogue’.
I am new to wordpress and all these technologies but tried to debug further.

I am not sure how much helpful below information is but pasting below in case somebody have some pointers.
I have noticed form the object cache information that with ‘WP Catalouge’ I do some information related to it when ‘techevent’ is clicked.

Group: post_format_relationships – ( 1.32k )
Group: wpccategories_relationships – ( 1.32k ) <——-I see this with Catalogue installed.
Group: comment – ( 8.44k )
Group: nav_menu – ( 0.27k )
Group: wpccategories – ( 0.29k ) <——-I see this with Catalogue installed.

Also from the query logs I see below

SELECT wp_slkh_term_taxonomy.term_id
FROM wp_slkh_term_taxonomy
INNER JOIN wp_slkh_terms USING (term_id)
WHERE taxonomy = ‘wpccategories’
AND wp_slkh_terms.slug IN (‘techevent’)

Why should ‘techevent’ be called with taxonomy ‘wpccategories’??

Is due to some conflict where the query is not sending correct information?

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