Hello,
I am the director of a consulting firm in France, specialising in finance, marketing and business development, named Aleri Consulting Group. The approach you took to find investors here might not be the best for you.
There are European funds for expanding of SMEs or if you are a startup you can apply for incubation/acceleration programs. Even if in Croatia you don't have much options, you can use fund raising platforms abroad. If you'd be interested to discuss about it, I would be happy to discuss with you what are the best options and maybe help you with preparing for the fundraising.
Kind regards,
Ioannis Papoutsis