We have just recieved an answer from digital ocean support team and we have the solution.
The problem was the upload provider. Instead of using “strapi-provider-upload-do”, use “strapi-provider-upload-digitalocean-advanced-config”. Just create folder inside extensions like: extensions/upload/config/settings.js, and then just put this code:
module.exports = {
provider: “digitalocean-advanced-config”,
providerOptions: {
key: process.env.DO_SPACE_ACCESS_KEY,
secret: process.env.DO_SPACE_SECRET_KEY,
endpoint: process.env.DO_SPACE_ENDPOINT,
space: process.env.DO_SPACE_BUCKET,
folder: “” ,
tagFilename: “” ,
cdn: false
}
}