Why I can’t see my NFT collections in my Klubx profile?

If you are unable to view your NFT collections in your Klubx profile, there could be several reasons for this.

1. First, make sure that you have connected the correct wallet to your Klubx account.

2. Ensure that your NFT collections are recorded on the blockchain and not only stored on a web2 platform.

3. Curently, Klubx support only ERC-721 protocol for NFTs and ERC-20 protocol for currencies.

4. We've identified a bug in the beta version of the Klubx app that's currently preventing some users from being able to view their NFT collections. This issue is also affecting Krew card members. We're aware of the problem and are working to resolve it as quickly as possible.

What are the differences between ERC-721 and ERC-20?:

ERC-721 and ERC-20 are both Ethereum-based token standards, but they have some key differences:

1. Purpose: ERC-20 tokens are fungible, which means that each token is interchangeable with any other token of the same type and value. ERC-721 tokens, on the other hand, are non-fungible, which means that each token is unique and cannot be exchanged for another token of the same value.
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2. Token structure: ERC-20 tokens have a simple token structure with only one balance associated with each token holder's address. In contrast, ERC-721 tokens have a more complex structure, with each token having its own unique identifier and metadata.
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3. Use cases: ERC-20 tokens are typically used for creating currencies or utility tokens, while ERC-721 tokens are primarily used for creating unique assets such as collectibles, game items, and real estate properties.
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4. Transfer functionality: ERC-20 tokens can be transferred easily between users, while ERC-721 tokens require a more complex transfer process due to their unique nature.

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