in your intervals.icu settings, inside connections, connect your mywoosh to intervals directly (so its not just via strava).
please note the following also.
IMPORTANT NOTE: Please be aware that because of STRAVA API policy intervals.icu cannot share any STRAVA sourced data with third parties.
This is otherwise fine for Garmin, Wahoo, Zwift etc, and FIT file uploads to intervals.icu - please connect these to your intervals.icu profile.
After you have connected a proper source you can also import your Strava history if needed, this is not subject to API terms! see Import all Your data from Strava Import all data from Strava
Regards
Clive