SPF: Maximum DNS-interactive terms limit (10) exceeded (Siteground)

making a mail tester check I have an issue in my SPF record.

My SPF record is:

v=spf1 include:mxsspf.sendpulse.com +a +mx +a:ns1.es38.siteground.eu include:_spf.mailspamprotection.com ~all

szoltandfrog.com ... _spf.mailspamprotection.com: Maximum DNS-interactive terms limit (10) exceeded

Do you know the changes to validate the SPF recor workly?