As we mentioned in a previous post in December Google announced it would be ending their Google+ service. Personal (Consumer accounts) will be removed first then business accounts. According to Google's recent blog posts April 2nd 2019 will be the day the files for consumer accounts are removed. Google recommends that you download and make a copy of anything you want to keep because you won't be able to access it after April 2nd. For Business accounts we haven't seen a specific end date but if you aren't sure if you were using a consumer account for business (and some of you might) you should consider downloading all your content prior to April 2nd.
For more you can go to google at: https://support.google.com/plus/answer/9195133?hl=en&authuser=0