If you receive errors when loading your hero, try the following steps to solve the problem
Information on how to restore your Diablo III character
Troubleshooting steps to help you connect to Diablo III
Bungieのウェブサイトに「Destiny 2」のコンテンツを移行しましょう。その前にBattle.netコードの引き換えを忘れずに行ってください。
Troubleshooting this error in Warcraft III
Player reports they had heroes they use to play in Diablo III and they're now missing.