From the rules below it seems that your KITAP will not be cancelled but you may be in a different trouble after 60 days (in the Forum since 2008 , I never heard of any foreigner in Court due to the Article 116) .
--------------------------------------------------
Immigration Law (UU no.6 Year 2011) - free translation
Article 62
(1) A KITAP may be terminated because :
a. its holder leaves Indonesia for more than 1 year or don't intend to return to Indonesia;
d. it is revoked by the Minister or a designated Immigration Officer;
e. its holder is deported; or ...
(2) A KITAP may be revoked because its holder :
a. committed a crime against the state as stipulated in laws and regulations;
b. carries out activities which endanger state's security;
c. violates the Integration Statement ;
d. employs foreign workers without work permits;
e. provides false information in the filing of the petition for the KITAP;
f. is subjected to a Immigration Administrative Measure, or ...
-----------------------------
UU no.6 , year 2011 - free translation
Article 71
Each foreigner residing in Indonesia shall:
a. provide all necessary information regarding his/her & family identity , and report any changes in civil status, nationality, occupation, Guarantor, or a change of address to the local Immigration Office; or
.........
Article 116
Each foreigner who does not perform his/her obligations as stipulated in Article 71 shall be punished with a maximum confinement of 3 months or a fine of up to Rp25 million.
-----------------------------
PerMen no.36 Year 2021 - free translation
Article 14
(1) Changes in civil status that must be reported by the Guarantor includes: birth, death, marriage, divorce, child recognition, child validation, adoption of a child, name change, and change of citizenship status.
......
Article 16
Reporting of changes in civil status must be done no later than 60 days after the change in civil status occurs.