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Other Income (Tables)
 6 Months Ended
Jun. 30, 2023
Other income [Abstract]  
Schedule of Other Income Other income
   For the three months ended June 30,   For the six months
ended June 30		 
   2023
(unaudited)		   2022
(unaudited)		   2023
(unaudited)		   2022
(unaudited)		 
   (in €) 
Other income                
Income from government grants  4,874,934   14,415,368   12,609,789   14,415,368 
Other   7,974    26,173    19,307    27,767 
Total   4,882,908    14,441,541    12,629,096    14,443,135