When a company opens it’s door to you, - always walk through it.
If you’re asked to an interview, just go. Don’t qualify the opportunity with salary and working condition requests. Explore it, I always learn something. They’ve read your resume, they have a reason for asking you to a meeting. Take 45 minutes out of your life to meet people in your industry. At worst you make a new contact, at best you accept a new position. Doors open and close. Soon, this door will be closed again.