Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
I suppose you are receiving a mail because of this cert which is expiring today:
330959047 Final cert alisia.biz 2018-Feb-14 19:48 UTC 2018-May-15 19:48 UTC 0 days alisia.biz
alisia.online
client.dynamicmarketinglab.com
dev.cbpro.in
info.theautomationarchitect.com
invoicesync.net
is2x.cbpro.in
mad.gosystems.io
new2.wedeliver.email
woods-squared.gosystems.io
www.alisia.biz
www.alisia.online
www.invoicesync.net
You also have a cert expiring in 35 days:
362090935 Final cert alisia.biz 2018-Mar-22 08:32 UTC 2018-Jun-20 08:32 UTC 35 days alisia.biz
alisia.online
client.dynamicmarketinglab.com
dev.cbpro.in
dynetix.io
info.theautomationarchitect.com
invoicesync.net
is2x.cbpro.in
mad.gosystems.io
new2.wedeliver.email
woods-squared.gosystems.io
www.alisia.biz
www.alisia.online
www.invoicesync.net
And this is the current cert:
450428042 Final cert alisia.biz 2018-May-08 05:49 UTC 2018-Aug-06 05:49 UTC 82 days alisia.biz
alisia.online
bwtax.gosystems.io
client.dynamicmarketinglab.com
dev.cbpro.in
dynetix.io
gdpr.dynamicmarketinglab.com
info.theautomationarchitect.com
invoicesync.net
is2x.cbpro.in
mad.gosystems.io
new2.wedeliver.email
visionbiz.uk
woods-squared.gosystems.io
www.alisia.biz
www.alisia.online
www.invoicesync.net
So, the cert expiring today is covering 13 domains, the certificate expiring in 35 days is covering 14 domains (you added dynetix.io) and the current cert is covering 17 domains (you added 3 domains bwtax.gosystems.io, gdpr.dynamicmarketinglab.com and visionbiz.uk) so, Let’s Encrypt thinks the certificates are not renewals (because they are not ), just different certificates covering a different number of domains so it informs you by mail. For LE, a renewal is a new certificate covering the same domains as the previous one.
If your current certificate is the right one, you should ignore the expiration notification you have received… and in 15 days you should receive 2 more notifications.