Minute cron running for a long time and undefined error

https://rivcont.info/ [file]21870[/file] Previously, the crown worked for 1-3 minutes, now it works for 15 minutes. Please clarify why it started to work like this and what could be the reason? It started working like this after the liqpay API crashed a couple of days ago. [file]21870[/file] Also, at high loads (for example, 15 tons are created at a time), the following picture occurs (Fig. 1) here, for example, https://rivcont.info/4386224/ was in undefined products [file]21870[/file] and sometimes there were errors like here https://rivcont.info/4386497/ in the comments Executing error: Duplicate entry 'novaposhta-sum-orders-239' for key 'index_linkkey' in query: INSERT INTO `shopsystemnotice` SET `id`= '', `linkkey`='novaposhta-sum-orders-239', `data`='' [file]21870[/file] Please explain what these errors are in the database and what they are related to? Is it possible to somehow fix/optimize this? [file]21870[/file] [file]21870[/file]