WordPress Site - Formidable Pro Help (Quick And Easy Job If You Are Familiar)

I am working on building a Wordpress site, with Formidable Pro installed. It's basically 90% complete, but there are two things i need help with and I would need to pay a more experienced developer to assist. You must be familiar with both Wordpress and Formidable Pro in order to bid for the job. I need help in the following two items: 1. In one of my forms, there's repeating date fields created. However, there's some Javascript error that needs to be resolved, because the date popup calendar doesn't work. In the console, there's only one JS error: Error: Syntax error, unrecognized expression: input[id^="field_ugb6o"] I have tested and this error only happens to repeating date fields. The error will not occur if its other types of fields and if its no a repeating field. 2. When users sign up for an account, they are allowed to set their UNAVAILABLE start dates and UNAVAILABLE end dates in the repeating field. For example, User Andy set his UNAVAILABLE start dates and UNAVAILABLE end dates as follows: Unavailable Start Date Unavailable End Date 03-06-2016 07-06-2016 19-06-2016 24-06-2016 Hence, User Andy is unavailable on the above given dates. On the search form on a separate page, we need to search by AVAILABLE start date and AVAILABLE end date, with 2 fields. See image attached. We search by using two dates. Therefore, the filter needs to be customised. Instead of filtering by the UNAVAILABLE dates that the user provided, we need to reverse and search by the following logic: IF unavailable start date is greater than the searched end date OR the unavailable end date is lesser than the searched start date AND no conflicts with other dates, DISPLAY the results