Dear Sir or Madam, I have been presenting my paper "Air pollution and Innovation" at Druid 2021 (Tuesday, October 19, 09:00-10:30, Room: Sp212, Chair: Natalie Carlson 34). Could you provide me a certificate for my attendance at the conference ? I have tried to download the certificate via the online registration tool under "My receipt(s)". However, there is an error message when I try to download the certificate ("HTTP Status 500 - Internal Server Error") Kind regards, Felix Bracht Doctoral Researcher Department of Management, Strategy and Innovation Naamsestraat 69 - box 3535 3000 Leuven tel. +32 16 32 20 56 feb.kuleuven.be/research/MSI/home<https://feb.kuleuven.be/research/MSI/home> [cid:image001.png@01D84422.3E3DBD40]