White dots on inside of fermenter. Bad or OK? Pic/info inside

I'm brewing a sour, so it has lacto bacillus bacteria in the recipe. This has been in the fermenter for 2 months and these dots appeared fairly recently. The beer also has loads of fruit in it. It's had a blowoff in tact the whole time also so I don't think it got infected from bad air.

Pic: https://imgur.com/9CjNboe

Any info is appreciated! Thanks!