"It was difficult for her"

Britney Spears has fun in the sun amidst the family crisis.

The 37-year-old pop star was photographed this week in Hawaii, where she remains solo after news of her father, Jamie Spears, who is temporarily leaving his position as senior curator.

"She was very excited about traveling to Hawaii. Hawaii has always been a special place for her, "said a source at PEOPLE. "She has so many good memories of Hawaii. And it was a good time for a vacation. "

Spears, whose son Jayden James Federline was 13 on Thursday, is in Hawaii without his father and boyfriend Sam Asghari. (His son Sean Preston Federline will turn 14 on Saturday.)

The singer's escape comes a few days after a judge's approval of her father's decision, Jamie, to leave her position as co-curator and leave Jodi Montgomery, her long-term "caregiver", to take over. temporarily relay.

"Britney is not a fan of all this drama. She felt very stressed, "the source told PEOPLE. "It's not good for her at all. She had trouble staying healthy. "

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On the change of curator, an insider previously spoke to PEOPLE: "Nothing will change in Britney's life. Jamie will always hear from Britney and will make sure she is protected from people who want to enjoy it. [Her mom] Lynne will also be attending if Britney needs her. "

Jamie, 67, reportedly "decided to resign temporarily" as a Conservative daughter after her ex-husband, Kevin Federline, filed a police report accusing him of physically assaulting their son Sean .

On August 24, Jamie reportedly "got very angry" with his grandson and, according to The Blast, broke a door to reach the teenager.

"There was physical contact that made Sean frightened and upset," a source told PEOPLE. "Britney is also pissed off and ended their visit with Jamie."

Spears, who currently shares about 10% of his children's care with Federline, "can not believe that his father would endanger his relationship with his boys," the source added. "Britney is still terrified at the thought that she will lose custody."

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On August 25, Federline and his lawyer, Mark Vincent Kaplan, filed a police report to the Sheriff's County Sheriff's Office against Jamie.

According to Kaplan's report in the police report, Jayden, son of Spears and Federline, was also present during the fight of Jamie and Sean.

"Britney did the right thing, kidnapped the kids and took them out of there," Kaplan told PEOPLE, adding that Federline still wanted his ex-wife to have "permanent and meaningful contact with their mother."

Spears' sons also recently received a restraining order against their grandfather filed by Federline and Kaplan.