Travis Barker and Shanna Moakler were once madly in love — now they’re duking it out over child support payments.

The Blink-182 drummer indicated he wants to see some major changes in their current agreement, according to TMZ. Barker claimed he’s been asked to pay $18,000 a month in child support and can no longer afford it. The musician said he’s making less than $600,000 a year and would like to see his payments lowered substantially. In fact, the celebrity news site reported he’s looking to pay as low as $2,900 a month.

In addition, Barker, 40, claimed in documents cited by TMZ that his ex is spending a substantial amount of his money on herself rather than on their two children, Landon and Alabama. In the documents, he contended the kids have repeatedly been sent to school without lunches. He also said he recently found 12-year-old Landon “roaming around” Calabasas, California, without adult supervision and that Moakler, 40, wasn’t aware of his whereabouts at the time.

Baby mama drama and financial woes aside, Barker has been hard at work on new music with Blink-182. Bassist and vocalist Mark Hoppus posted a video on Instagram Feb. 3 that depicted Barker pounding away on his drum Kit. Hoppus did not reveal the name of the song Barker can be heard playing in the video, but he did share with fans that it had been written only that morning. Before then, Hoppus teased new music on Twitter, sharing a photograph of himself, Barker, new guitarist Matt Skiba and producer John Feldmann sitting together after a long day in the studio. He shared with his followers that at the time the photo was taken they’d just wrapped a 14-hour session.

The resultant album will be Blink-182’s first project without longtime guitarist Tom DeLonge. He parted ways with the band in January 2015, at which time Skiba, who played for and sang in the band Alkaline Trio for many years, stepped up to the plate.

Neither Barker nor Moakler have spoken on their custody battle on social media. However, TMZ has reported that sources close to her claim she was upset to learn Barker wanted to make changes to their agreement.