I think your issue is due to, as the error msg says, a JSON formatter error.
I assume that you've done some changes in a JSON file and didnt format it the right way.

Try and upload BBP_Setting.json located in the profiles folder in a JSON validator and see if you get any errors. (Example: https://jsonformatter.curiousconcept.com)

Each array element (unless its the last one) needs to end with a , sign.

Example (NOT the complete file, only an example).
This will produce an error since theres missing a , sign on line 6.

{
"g_BBPTier3RaidToolDamage": 1000,
"g_BBPTier1RaidTools": [
"HDSN_BreachingCharge",
"HDSN_BreachingChargeHeavy"
]
"g_BBPTier2RaidTools": [
"HDSN_BreachingCharge",
"HDSN_BreachingChargeHeavy"
]
}

Correct formatted:

{
"g_BBPTier3RaidToolDamage": 1000,
"g_BBPTier1RaidTools": [
"HDSN_BreachingCharge",
"HDSN_BreachingChargeHeavy"
],
"g_BBPTier2RaidTools": [
"HDSN_BreachingCharge",
"HDSN_BreachingChargeHeavy"
]
}

yea when i vaslidate the jsons no error i think its files i cant access.