Hi, this can be the result of:
- not enough resources (you have a 1GB MEM server with 1 CPU and pay only like $20 for it)
- you DB doesn’t have index on email address in the leads table
- you have WAY TOO MANY columns in your csv
- you had an error and it stopped
- your cronjobs are not set or set wrong
Here is an article to help you out:
How to import contacts to Mautic in the background without timing out - Knowledge Base