The problem HelpingETHS solves

A crowdfunding platform serves as a way for individuals or organizations to raise funds for their projects, business ventures, or charitable causes from a large pool of donors, usually via the internet. It provides an accessible and convenient avenue for those who lack traditional funding sources, such as loans or grants, and allows them to reach a broader audience. Crowdfunding also provides a way for people to invest in causes or projects that they believe in and to feel a sense of ownership or involvement in the success of those initiatives.

A React based web application which allows a user to:

Create A Crowdfunding Misison
Donate to a Mission
Store user images/documents on IPFS
Get all the amount in Ethereum without any deduction

Also, a mission is given tags automatically like medical, education, etc.

Challenges I ran into

Integrating blockchain modules with web application
Using new techs like Hardhat and Thirdweb
Integrating IPFS with the web application
Deploying the Ethereum Smart Contract on Polygon