Free space . Partition error

[aminul0091]

I was installing windows on my mac. For that reason I made a 351gb partition on my mac. But there happened some mistakes and I decided to remove the partition. But when I was removing the partition suddenly my charger got detached from the plug and my mac turned of. When I started it again I was trying to repeat the process of removing partition. But this time I got this problem where you can see there had built a partition named free space .

And this partition don't even have any format. Whenever I try to remove the partition I always see this error.

Even in disk ultilities it shows I have ony 248 gb.. But my ssd is 600GB.

Please please tell me how can I repair my ssd. How Can I get back all my space of my ssd.

 

[appltech]

Hmm
If there are (on SSD) no important data/data that should be saved then:
– Click on the View button, select "Show all devices"
– Select the top one
– Click Erase
Could help, but you'll lose all the data

 

[aminul0091]

Hmm
If there are (on SSD) no important data/data that should be saved then:
– Click on the View button, select "Show all devices"
– Select the top one
– Click Erase
Could help, but you'll lose all the data

I tried this. But after erasing my ssd.. It shows only 247 gb.. My 351 is still unusable

 

[aminul0091]